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
Bust NFL quarterback Alex Smith's nuthuggers that come up with countless Alexcuses to "prove" that its everyone else's fault but his for being an utter failure.
There are a ton of Alexsexuals making Alexcuses on the 49ers.com message board.