While the word [slur] may be on the way out, there are multiple terms that carry the same meanings, sans the derogatory connotations, which you can use for all of your memes about these characters. For example:

Femboy: Term for a (usually) cis man that presents as traditionally female.

Crossdresser: Self-explanatory.

Otokonoko(男の娘): A common Japanese term for a male who presents traditionally female; crossdresser.

Josou (josō, 女装): A Japanese word meaning "wearing female/feminine." Often used interchangeably with Otokonoko.

Tomgirl: Opposite of tomboy - a boy that acts/looks like a girl/carries feminine mannerisms.

Cutie: Objectively the best descriptor.

This is really nice to see, and I love that last one. I'm not into anime but it was frustrating to see the posts that popped up on /all/ full of slurs.