Sal - aw yeah, so I come 'ome and Billy 'n Ben have left the toilet seat all fackinshitted up. I mean seeeeeriously...
By Malanie
Shit-up
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?
By Sherill
Shitting Up
Verb, used interchangeably with "fucking up". Mostly in regards to destroying something that otherwise would be well organized.