A fanny slap is a slap that sounds like when you slap a fanny, it usually associates with a ruler and slapping it on the table anything that makes that tingling sound is known as a fanny slap. Could even be a spatular.
Person 1 & 2 are in the maths room
*Person 1 slaps his ruler across the table*
Person 2: Did you hear that?
Person 1: Yer it sounded like a fanny slap!
*Person 1 slaps his ruler across the table*
Person 2: Did you hear that?
Person 1: Yer it sounded like a fanny slap!
by LouiiHoare July 6, 2011
Get the Fanny Slapmug. by niggercoin April 27, 2022
Get the slapmug. by ezxchkl;' February 25, 2020
Get the bitch slapmug. by Daddy bunny July 4, 2017
Get the aunt jemima slapmug. When someone with a tiny penis "try's" to masturbate. Their peter is so tiny that they end up just slapping their sack
Jessica: I caught Perry beating off in the bathroom yesterday.
Amanda: Trust me, his dick is so small he was just slapping the sack.
Amanda: Trust me, his dick is so small he was just slapping the sack.
by Jameshasahugecock May 13, 2018
Get the slapping the sackmug. by Optic grapefruit August 27, 2016
Get the peanut slapmug. by Iron--Mike May 16, 2016
Get the Happy Slapmug.