ワンサイドアップ サイドアップ ハーフアップ
A variation of [[two side up]] in which some locks of hair are tied up on one side while the rest hangs normally. Neither length or volume of the tied up hair nor that of the other free-flowing hair matters for tagging purposes, only that the <b>remaining</b> hair falls down loosely.

Not to be confused with [[side ponytail]], where the majority of one's hair—save for [[sidelocks]]—is pulled up into a ponytail that leaves <b>no</b> hair falling loosely.

If the hair is not tied up but just sticking out on its own, tag as [[side ahoge]].

h5. Examples
* !post #6414776: short hair, short side up
* !post #6426051: short hair, long side up
* !post #7775296: medium hair, short side up

* !post #6373249: medium hair, long side up
* !post #6431000: long hair, short side up
* !post #6511326: long hair, long side up

h5. Not [[one side up]]
* !post #7237036: [[side ponytail]]
* !post #7612721: [[low side ponytail]]
* !post #7158018: [[single side bun]]
one side up