A condition when you are heterosexual but, when you get high or drunk you act homosexual
Boy 1: Dude, your sister got really freaky with her best friend last night
boy 2: Yeah I saw, she was high.
Boy 1: Oh! She is Highsexual!
by Big N Tasty March 10, 2011
the sudden reversal of one's sexual orientation after smoking marijuana.
"Daniel is usually as straight as they come, but when he's baked he turns really gay. He's really highsexual."

"Eric and Phil started saying some really gay things last night, they're raging highsexuals"
by friedkabob1225 July 9, 2009