pee one's pants

Verb

pee one's pants (third-person singular simple present pees one's pants, present participle peeing one's pants, simple past and past participle peed one's pants)

1. (informal) To wet oneself; to urinate in one's clothes while wearing them.
   • (Marvin) I'm so excited about Christmas being less than a week away, I could pee my pants!
     (Bitsy) Exactly how is that different than any other time?2015 December 19, Tom Armstrong, Marvin (comic)

   Synonyms:

   have an accident, pee in one's pants, pee oneself, piss oneself, piss one's pants, wet oneself, wet one's pants

2. (idiomatic, informal) To laugh uncontrollably.
3. (idiomatic, informal) To be extremely frightened.