Christmas Eve Eve
Christmas Eve Eve
[Cueball with his arms out is talking with White Hat and Megan. In Cueball's long last remark the letters get smaller from line to line.]
Cueball: Today is Christmas Eve. Yesterday was Christmas Eve Eve. Megan: Uh huh... Cueball: Of course, tomorrow is Christmas. And then, my favorite... Megan: Oh no. Cueball: ...Christmas Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve! Megan: I'm returning the presents I got you.
11 14 14 14 15 16 17 17 18 20 21 22 24 25 27 30 32 27 364 total! The first line also has Christmas along with the 11 eves, and do take up more space than the 14 eves below. The last line is only partially filled, with 4 eves from the line above on each side (so room for more than 35, probably 40, eves in one line with that font size.) The first three lines with 14 eves becomes clearly shorter, before more is added almost in every line after this, except two lines with 17 each.

This year's Christmas comic was posted on December 24, 2018, the Christmas Eve of 2018.
The evening or day preceding a special day such as a holiday is often referred to as the eve of that day (derived from the same word from which we get evening ). Thus December 24 is Christmas Eve. Some people extend this and call December 23 "Christmas Eve Eve," as Christmas Eve is itself a noted holiday. The day before that would be "Christmas Eve Eve Eve," adding one "Eve" for each night before Christmas morning, although the increasing extension leads to each additional "Eve" being continuously less common.
Cueball notes the general idea, and Megan acknowledges it. Cueball follows by naming December 24 as Christmas Eve, December 25 as Christmas, and then mentions that the following day is his favorite. Megan's "Oh no" implies that she knows what Cueball will say next.
Since December 26 is the 364th day before Christmas (when the following year is not a leap year, which was correct in 2018 when the comic was released), it follows that it is "Christmas" followed by "Eve" 364 times.
Megan finds listening to Cueball recite this unacceptable. As such, she announces that she will not give him gifts, taking the extra step of returning the gifts she'd already bought. As Christmas presents in America are first handed out on Christmas Day's morning (unless the giver and recipient are aware in advance they will be unable to meet in person on that day; Megan's presence on Christmas Eve indicates this is not a threat), she has not given it to him yet.
The title text refers to the Boxing Day holiday celebrated the day after Christmas in the UK and many parts of the former British Empire. Although the exact origin of the name is unknown, it is believed to be in reference to the Alms Box placed in areas of worship to collect donations to the poor, which was then opened right after Christmas. Most Americans don't know this and make jokes about how it refers to the sport of boxing . In this title text we can presume Cueball was punched (or boxed ) after his litany of 364 Eve s, to which he replies, "Oh, so that's why they call it Boxing Day." As this is a pun of groan-inducing triviality, he receives another punch .
[Cueball with his arms out is talking with White Hat and Megan. In Cueball's long last remark the letters get smaller from line to line.]
Cueball: Today is Christmas Eve. Yesterday was Christmas Eve Eve. Megan: Uh huh... Cueball: Of course, tomorrow is Christmas. And then, my favorite... Megan: Oh no. Cueball: ...Christmas Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve  Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve Eve! Megan: I'm returning the presents I got you.
11 14 14 14 15 16 17 17 18 20 21 22 24 25 27 30 32 27 364 total! The first line also has Christmas along with the 11 eves, and do take up more space than the 14 eves below. The last line is only partially filled, with 4 eves from the line above on each side (so room for more than 35, probably 40, eves in one line with that font size.) The first three lines with 14 eves becomes clearly shorter, before more is added almost in every line after this, except two lines with 17 each.
