An anus that is used for sexual intercourse. An asspussy will generally be penetrated by (but not limited to) a penis (or penises) and/or other appendages. Asspussy is also most likely to be shaved and willing to accept cock at any given moment. The presence of asspussy implies the act of "fucking," not "making love."
After donkey punching her, I rammed my pole into her asspussy and blew my wad into her sludge farm.
I fucked her asspussy until it blossomed like a fudge flower.
I pulled out and shoved it in her asspussy because was far tighter than her coochie.