butt up 

1.)When your underwear gets entrapped in the crack of your ass. Also see Wedgie

2.)What a male might say after sexual foreplay just before intercourse when the female asks "How do you want it?"

d1.)Whenever I wear boxer briefs I always tend to get a butt up.

d2.)Female says: "How do you want it?" The male replies, "Butt up!"

butt up by Comkind November 1, 2007

Butt-up syndrome 

When a person is sick and when they go to use the bathroom to take a dump, a sudden urge of vomiting arise and with no to wipe, flush, and pull your pants up, they get on their knees and vomit with their naked butt up in the air.

My mom caught me in the bathroom with butt-up syndrome. She asked me "Saba why do you have your pants down when you are vomiting" I replied, "Because I didn't have time to wipe and pull them up!"

Butt-up syndrome by Da Beast from the Middle East May 1, 2009

butt up front 

Phenomena which occurs when a very fat person shoves the lower part of their stomach beneath the waist of their pants creating the appearance of an extra pair of buttocks.

Man, after Jenny had her baby she developed some major butt up front.

butt up front by FergusonTO35 October 21, 2010

Butt up their ass 

When you are particularly stoned as fuck and you try to say "stick up your ass" but instead say "butt up your ass".
Izzy

Izzy: "Why do British people talk like, that like they have a butt up their ass. Oh wait, I mean stick up their ass... hehehe"

Butt up their ass by Spaghettioslover365 April 7, 2022

Back that butt up 

an attractive luscious female ass

"woohoo hey baby back that butt up!"

Back that butt up by theCARS7879 July 13, 2018

Butt'r Up 

A frozen stick of butter that is inserted anally. Can be used as a oily enema, a fast and loose lube suppository, and a cold booty delight. This bathroom pre-game can be used in many anal applications.

"Jeremy my good man, perhaps we shouldn't have indulged ourselves so in the Arby 2-for- $5 deal!
"Fret not Wattsworth, I purchased just the thing! Butt'r Up was on sale in the dairy aisle. Pucker up."

Butt'r Up by Brotha Brad September 18, 2025

stick up their butt 

Someone who is particularistic, ridged, and not flexible. Not fun, cannot see humor, and overall, unpleasant.

They complained about that? They must have a stick up their butt.

stick up their butt by Family Sherpa February 26, 2014