Like how there's the featureless_crotch tag for when the crotch is plainly visible, but there's no naughty bits to be seen; or there's the featureless_breasts tag for when the breasts have nothing covering them, but there's no visible nipples? I ask 'cause it seems like such a tag would be relevant for a post like this...

I found missing_anus which seems to be used for that purpose.

thevileone said:
I found missing_anus which seems to be used for that purpose.

Maybe implies constipation?
*Runsaway*

thevileone said:
I found missing_anus which seems to be used for that purpose.

I think that only applies when the character has genitals