Sucking your own dick to the point where you yourself end up looking like a shrivelled prune that's been left out too long.
Why is Jack looking so sickly? Is he feeling okay?

Yeah, he's just done the Steve Bannon Sit Up too much.
by CrazyMoroccan August 12, 2017
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a german sit up is when you pick a kid (usually an prick).
Next blind-fold the kid and push his shoulders down.
Now here is the fun part, get a friend to sqaut with his pants pulled around his ankles and put your butt in front of the kids face. Now the people who are holding him down let go of the kid - resulting with the kids ass ending up in the sqauters face
Todd:" Lets make Robby do a german sit up"
Jack:" Dude, thats messed up... LETS DO IT"
by cody2012 February 14, 2008
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When you initiate rookies by restraining them from sitting up with a pillow or rag etc and removing it while someone stratles above the pillow with their pants down. Move the pillow and as a result the rookies face will procede into the guys asshole. Resulting in a brown nose.
Barney Dawg was so retarted he tried an impossible sit up and got shit stained . What a douche. Mccoy Sports 4 life
by COdy aka big dagg September 21, 2004
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Verb: To flop over in an unceremonious manner usually after consuming massive amounts of fast food.
Upon consuming two large pizzas, about all Bill had the energy for were some lazy donald trump sit ups.
by BostonRarr August 5, 2023
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Action. To straddle someone's face and to place your asshole over that person's nose while they sleep, then as they awake from a punch in the groin...well you get the picture. Ta-da! An impossible sit up.
Matt gave Craig and IMPOSSIBLE SIT-UP and he farted in his nose!
by Godsbest September 2, 2003
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A FOX Animated series with writing that would make even Matt Stone and Trey Parker facepalm, and animation worthy of Hannah Barbara.

It was written by the same people behind Arrested Development, and was probably the idea of some moron FOX executive who just now realized cancelling Arrested Development was a mistake. But instead of bringing it back, they bring this to the table.

It lasted a remarkable three episodes. Frankly, I'm surprised it lasted even that long. The same thing pretty much happened in all three episodes.

If they try to sell a DVD of this, they better have the keyboard cat at the end of every episode, with a title saying "We're so sorry about this" as an overlay. Come to think of it, all bad movies and TV shows should have that. This means you, Land of the Lost!
Nick: Did you see Sit Down, Shut Up last night?

Matt: Nobody did.
by billy_buddy_of_doom4 December 7, 2009
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A highly competitive exercise competition requiring each participant to insert a well lubricated prosthetic penis and or phallic shaped object(s) into the anus prior to performing maximum effort sit-ups. The goal is to perform the maximum amount of repetitions each round prior to the prosthetic penis and or phallic shaped object(s) fully dislodging from the body. A winner will be determined following ten rounds of continuous play with no more than a one minute break in between rounds.
those last few rounds of Bert Kreischer sit-ups was a gut check!
by Mr SlapNTickle March 20, 2023
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