|1.||crapping your pants|
1.) Where you make crap or poop in your pants, without using a toilet. Normally frowned upon in society.
2.) Not necessarily doing the above, being very scared, frightened, or angry.
1a.) Dude, you really need to stop crapping your pants.
1b.) Ew, Alex just crapped his pants.
2.) I'm going to crap my pants if I get a bad grade on this test.