Butt Sunday 

Butt Sunday is where you just send a picture of your butt to every group chat you are in. It doesn’t have to be naked, it can be clothed. Just a butt pic on Butt Sunday.

Connor: Hey did you send a butt pic to the group chat yet?

Chelsea: No, why?

Connor: It’s Butt Sunday, you gotta send a butt pic in every group chat you are in.

Chelsea: I didn’t know that, I’ll get right on it!

Butt Sunday by FudgePudding715 January 21, 2024

Butt Sex Sunday 

When you decide to blow off all responsibilities on any given sunday including work or going home if you've been out of town partying all weekend. Very popular term used in the rugby community. Should always involve hanging out with members of the opposite sex and is even better when you actually have butt sex with one of them.

Skip: Well, should we head back to the twin cities, I have to work later.

Joe: Screw that, we're in Chi-town, it's Butt Sex Sunday, all day long.

Butt Sex Sunday by bretty b December 13, 2009

Butt Plug Sundae 

When you let a turd out but your arse is so fat that it gets stuck between the butt cheeks and won't budge.

Sarah: oh Mark, I've just delivered a butt plug sundae
Mark: shall I reach in and scoop it out?

Butt Plug Sundae by MMJK November 5, 2019