Jacob: it's March 13th you know what that means...
Me: oh shit it's National Slap Ass Day how could I forget!
Me: oh shit it's National Slap Ass Day how could I forget!
by SuperDope Trash March 10, 2020
Get the National Slap Ass Daymug. by trackgod100 December 10, 2019
Get the National slap ass daymug. 15. desember
You get to slap anyone’s ass for a whole day
National slap ass day is where you Walk up to a girlfriend or boyfriend or someone and slap there bum
You get to slap anyone’s ass for a whole day
National slap ass day is where you Walk up to a girlfriend or boyfriend or someone and slap there bum
by ShrekFan420 December 14, 2020
Get the slap ass daymug. 
by courtney freakin miller September 24, 2019
Get the Slap ass weekmug. An excuse made by teenage boys to sexually assault teenage girls in school hallways. This causes girls to hang their backpacks down low to cover their ass so that boys won't hit them. Nobody likes this except the perverted boys who participate and there are never any repercussions.
Boy: *slaps girls' asses in the hallway*
Girl: You can't do that. That's literally sexual assault.
Boy: Yes, I can! It's Slap Ass Friday!
Girl: You can't do that. That's literally sexual assault.
Boy: Yes, I can! It's Slap Ass Friday!
by Smell_like.a.gertrude April 4, 2021
Get the Slap Ass Fridaymug. by lightskinnn3000 December 5, 2019
Get the Slap ass daymug.