Sexually Transmitted Transsexual. When a guy fucks a tranny and that causes him to question his gender and become one too.
John: "Man I don't know, ever since what happened with Vasca I've been having these weird feelings about gender"
Dave: "Dude I hope you didn't get STT"
Dave: "Dude I hope you didn't get STT"
by CEO of fish October 15, 2023
by CEO of fish January 19, 2022