Used to describe a situation where someone couldn't control their bladder, often due to surprise or fear. During the haunted house tour, the sudden jump scare made the little boy wet himself.
Pro Tip 2/3
Not Literal
Sometimes used in a teasing way among friends, not always meaning it actually happened. Don't make me laugh too hard or I'll wet myself!
Pro Tip 3/3
Embarrassing Topic
It can be a sensitive or embarrassing topic, so use with caution to avoid offending someone. Sorry, I didn't mean to embarrass you when I said you wet yourself.