December 17th is the day you can slap anybody's ass without them getting mad for girls and BOYS.
You*Slaps yo friends ass
Your friend*wtf
You*Sorry its national slap ass day
On the 25th September any boy/girl can slap each others ass.
Boy slaps girls ass.
Girl “wtf is wrong with you…. Fucking perv”
Boy “it’s the 25th September dumbass it’s national slap ass day”
Girl slaps boys ass and bites lip
You get to slap a freinds ass without getting in trouble
Hey josie guess what its national slap ass day