use for that annoying nigga that is always bothering you ! don't use violence use SYBAU ! but don't use this in a bad situation like when your in trouble and your mom's yelling at you and you whisper under your breath "shut you bitch ass up..." there is a 101% chance you will get slapped . (Warning) Keep Out of hands of children !
Olivia: Ohhh im olivia and i have a weird head and cool bf...
Eugene: Shut Your bitch ass up (SYBAU) !
Olivia: tww non-sense !
Eugene: Shut Your bitch ass up (SYBAU) !
Olivia: tww non-sense !
by KiDWest May 26, 2010

A phrase coined by American heavy metal band Pantera in the 1992 track " Regular People. " This phrase simply means a person has their head so far entrenched in their anal cavity that they cannot see the obvious in front of them.
Can be used in any tense past or present.
Can be used in any tense past or present.
"Hey dickhead! You can't see because your heads up your ass!"
Wow, you fucking cunt. You can't see because your heads up your ass."
Wow, you fucking cunt. You can't see because your heads up your ass."
by Microhard726 August 3, 2020

Person 1: hey you know what day it is?
Person 2: its December 13 why?
Person 1: its national slap your crushes ass day.
Person 2: oh ok (slaps ass)
Person 2: its December 13 why?
Person 1: its national slap your crushes ass day.
Person 2: oh ok (slaps ass)
by Oakpaw December 7, 2019

The definition of National Slap your Friend’s Ass Day is basically don’t pussy out and SMACK DAT BOOTY
by Jax1995 June 27, 2019

by Give it all February 4, 2021

Today is the day ladies! ATTENTION all young men & old men today you MUST let your Girlfriend beat YOUR ass !! NO hitting , fighting , breaking up , silent treatment , or shooting !
Girl : who is that ?
Him : bae idk what you talking about !
* girl thinks and remember that today is “national beat your boyfriend ass day *
Girl : that’s alright ima beat yo ass
* gf attacks bf *
Him : bae idk what you talking about !
* girl thinks and remember that today is “national beat your boyfriend ass day *
Girl : that’s alright ima beat yo ass
* gf attacks bf *
by sillywillydillypilly April 18, 2019

National slap your girls ass day-Today’s national slap your girls ass today so I’m going to slap your ass
by Butterboi4lyfe October 13, 2019
