WordNet
v. become obstructed or chocked up; "The drains clogged up"
Usage examples of "crap up".
As Charley watched, the little thing moved, going 'round and 'round the bowl in lazy circles, each one a bit smaller than the one before, and as it did the sickly liquid seemed to be pulled up into it, as if the pulsing white energy were some sort of straw bringing that crap up to some invisible mouth—.
Pigmeat said loud enough for everyone to hear, 'Nigger, you got crap up your back.
Besides, the way I size it up, Paula had to have been incubating inside more than a few of them by then, with stuff like stealing, maiming, raping, murder, and blowing crap up just around their respective corners.
Jesus, he was glad Billy Thorpe had never seen that awful crap up in Steve's room.
They'd bring a couple of movies with them, score a few turds and head back home to cut the crap up into a fortune.