Any given Friday when people choose to run around slapping anyone and everyone's asses. Usually, a male slaps a female's ass, and it's automatically considered okay for no reason other than the boy has proclaimed it "Slapass Friday."
BOY: *slaps girl's ass*
GIRL: What was that for, you prick?
BOY: Slapass Friday!
Slap Ass Month is a holiday that takes place all throughout the month of October where you get to slap anyone's ass if you are there friend, cousin,co-worker,etc. And it's not gay
Me:Yo my homie called me gay for slapping his ass but it's slap ass month so it's fine