Fisthole
A fisthole is any 'hole' on the woman body that a fist can be fit into, usually pretaining to the vagina or anus. Fistholes are usually found on loose women and easy sluts.
Joe: Dude, I totally found a girl with a fisthole last night.
Scott: Wow, she musta done plenty of dudes in her day
Joe: Yeah, I almost got the double fist in there!
Scott: Wow, she musta done plenty of dudes in her day
Joe: Yeah, I almost got the double fist in there!