A term created by Gary (lastname classified); originally meant to be used when someone says or does something gay, but later turned out to also be a term used when something or someone did something stupid.
Boy 1:Dude, that guy looks so hot.
Boy 2:You bein gay Tom.
Boy 1: All we gotta do is smack him and he will give usthe money.
Boy 2: Bein gay Tom, that's a stupid idea.
"Why are you going around tripping other people Jimmy, seriously your gon'a get your ass kicked, i thought you were my friend untill you tripped me to"