That mean's when u like only Alex. And you wanna fuck them. (her/him/them)
My friend: anyway what is your sexuality?
Me: Oh, I'm Alexsexual.
My friend: huh, what?
Me:y'know i just rly wanna fuck them, they're so hot My friend:oh okay
Someone who is attracted to buttholes. They can be either male or female buttholes. It is used in the same way you would use the word bisexual or homosexual.
Jack: Didn't you hear? Mary did Mark in the ass!
David: She did Jenna is the ass last week! I thought she was a lesbian?