What is Triosmut?
1.
A type of fanfiction peculiar to the Harry Potter fandom, involving a sexual relationship between all three members of the "Trio" -- the three main characters of the books.
Any story concentrating on sex or sexual activity/innuendo involving Harry, Ron, and Hermione.
She read a piece of Triosmut last night.
See
Random Words:
1.
A Oneway Motherfucker
You are such a Pratt Street.
See cornholio..