A small, round ball of feces resident in the gusset of one's underwear. Unlike a traditional butt nugget, the Gusset Tuffet works itself free from the recess of one's ass crack but goes unnoticed until the undergarment is removed. Gusset Tuffets are long suspected of being the primary source of skid marks.
Roger took a nasty dump at the office. He thought he wiped clean but realized later he had been walking around with gusset Tuffets all day.
It was horrible, I've shed a stone since I took her knickers off and saw her filthy gusset, it was every kind of rank possible, i got a S.T.I just looking at it
The boyversion of a pussy is a bussy, which is their anus.
A gussy would then be the girl version of a bussy, so a female's anus.
Ian - "GIRLS DON'T HAVE GUSSIES!"
Morgan - "YES THEY FUCKING DO, IT'S A GIRL BUSSY!"
Ian - "A GUSSY IS NOT A THING, THAT'S JUST A BUTTHOLE!"
Morgan - "NO! BOYS HAVE BUSSIES BECAUSE IT'S A BOY PUSSY SO THEN GIRLS HAVE GUSSIES BECAUSE IT'S A GIRL BUSSY!"
IAN - "YOU'RE FUCKING RETARDED!"