Shit-up Edit Meaning

1.

Working out vigorously with full bowels, then trying too hard to get that 'last' sit-up. At least your whole anus didn't pop out, like has happened to some unfortunate weight lifters.

Weight lifter: *pant* *pant* uuHHUNNGHHT! *sploosh*

Random hot girl walking by: Aww gross... did you just shit-up?

See poo, working out, unfortunate

2.

when a huge dump comes flying out your dunghole so fast that you are lifted off of the toilet seat

Guy: Oh shit here it comes!

'turd shoots out like a bottle rocket'

'guy's head gets stuck in ceiling'

Guy: Damn i hate doing those shit-ups.

See shit, crap, pooter, bottlerocket, explosion, swamp thing