Emojic 8 Ball
[An image of a shiny black ball with a white circle forming a black window at its center. Above the image is a title where the number 8 is written in a black circle, making it look like an 8-ball.] Emojic 8 Ball
[Below the title is an input field with a placeholder text in grayed out text:] How will I die?
[Below is a gray submit button.] Ask
[The Emojic 8 Ball is below the ask button. The text in the input field can be changed by the user before pressing the ask button. After the submit button is pressed, 1 to 3 emoji symbols appear in the black window, framed inside a light blue equilateral triangle with one end pointing straight up. Once this has been done once, then a link appears below the panel with this text: Permalink].

Emojic 8 Ball is a parody of the Magic 8-Ball using emoji instead of words. "Emojic" is a portmanteau of "emoji" and "magic".
A real Magic 8 Ball is a toy designed to visually resemble a real pool ball , which responds to questions (posed as yes-or-no questions) asked of it, ostensibly by magic. The responses are provided through a window on one face that displays text phrases printed on a triangular shape as depicted in this comic. Vintage balls contained a die with multiple triangular facets suspended in a dark fluid, while modern balls feature an electronic screen.
The ball in this comic provides responses in the form of graphical Unicode "text" (which this comic is suggesting are emoji ).
It is possible that this may be commentary on the inclusion of such "meaningless" symbols into Unicode. Ask a question and get a meaningless reply, even more meaningless than the answers given by a Magic 8 Ball.
It could also be commentary about the ambiguous nature of advice from fortune tellers, horoscopes, etc.  Each emoji has an ambiguous meaning (for example, depending on context, the cow symbol 🐄 could refer to beef or farming). The interpretation has more to do with the person receiving the fortune than anything given by the so-called fortune reader.
With the default question being "How will I die?", this may also be partially a reference to " Machine of Death ". This book from 2010 is a collection of short stories edited by amongst other Ryan North (of Dinosaur Comics ) mentioned here since the idea was based on one of his comics . Since Randall Munroe wrote one of the stories the reference is very likely. All the stories are based around a device, the "Machine of Death", that can predict, with 100% accuracy though generally with extreme ambiguity, how people die from a drop of their blood. In many of the stories very unusual deaths are predicted, often in a very literal way, but not so you know when or where you will die. From the official home page the entire book can be downloaded for free as a PDF file (broken) 2020/06 archive.org copy . (Randall's story begins on page 421 - or page 218 of the two sided PDF file. It is simply called "?"). The "Machine of Death" may also have been referenced in the fourth panel of 1341: Types of Editors .
Emoji were previously referenced in 1513: Code Quality . Emoji has since then become a recurrent theme on xkcd. But this is the first one with Emoji in the title.
Note: if you see mostly squares (possibly with six numbers/letters inside) in the 8 Ball instead of actual symbols or pictures, it means your system doesn't have fonts that support the Emoji unicode characters.  Scroll down to the discussion section below for suggestions on how to get and install the right font for your system, as well as to see a list of emoji characters so you can easily see if they're working or not.
[An image of a shiny black ball with a white circle forming a black window at its center. Above the image is a title where the number 8 is written in a black circle, making it look like an 8-ball.] Emojic 8 Ball
[Below the title is an input field with a placeholder text in grayed out text:] How will I die?
[Below is a gray submit button.] Ask
[The Emojic 8 Ball is below the ask button. The text in the input field can be changed by the user before pressing the ask button. After the submit button is pressed, 1 to 3 emoji symbols appear in the black window, framed inside a light blue equilateral triangle with one end pointing straight up. Once this has been done once, then a link appears below the panel with this text: Permalink].
