sizup 

Sizup, meens 'Sup?' or 'Wasup?'

U: Sizup On Tha Cheppa Tizai My Dizamie
THEM: Not Mizuch

sizup by Austin 248 October 19, 2002

the impossible situp 

when one bounds another across the head with a shirt and tells him to attempt to do a situp while an acomplice drops his pants and points his ass at the person doing the situp, at which time the shirt is released and the one attempting his the ass with his face

Damn, me and jorge got albert so good with that impossible situp.

the impossible situp by Combat 84 June 30, 2004

Sinupnut 

A highly confusing situation where a decision is very hard to make; A difficult situation one gets oneself into.

Person One: Man, I don't know which to choose! Chocolate, or strawberry?

Person Two: Bro, I don't know. It looks like you're in a sinupnut.

Sinupnut by yourmelodi December 17, 2010

power situp 

This is when you get some beefcake who thinks hes hot shit to show off. Tell him that you are going to put a towel over his head and see if he can do the situp while you pull down. Being the arrogant moron that he is, he gladly tries. Have someone pull their pants down over his head and release the towel. The unsuspecting douchebag's nose goes right up the guys ass.

I wish someone would give Arnold the power situp.

power situp by GG January 24, 2004

atomic situp 

person 1 is baited into performing "the hardest situp ever". Person 1 then lies on the floor on their back and told cross hands on chest. Person 2 then holds a towel over the face of person 1 covering the eyes telling him sit up quickly with all his strength when he say to. Meanwhile person 3 has removed their pants and is squating over person 1's face with out him knowing. Person 2 then tells person 1 to sit up quickly and removes the towel as soon as the sit up begins. The result is person 1's nose is planted into person 2's ass.

Betcha cant do an atomic situp

atomic situp by Double fisted Bobo August 18, 2003

SIUP

Suck It Up Princess
to tell someone to quit wining

bob: why can't I have a vampire boyfriend
me: SIUP

SIUP by setarip May 1, 2014

impossible situp 

when the sitter upper is blindfolded and then held down while he trys to do a situp. in the mean time another person puts theyre bare ass in his face and he is let go so is face smashes into the ass.

Dude we gave travis the impossible situp today and he smashed his face into codys ass, GNARRRRRR!!!

impossible situp by Q ha May 23, 2006