Piss (oneself) laughing British slang rude
If one pisses himself/herself laughing, it means that he/ she laughs in an uncontrollable or crazy way.
We can't stop pissing ourselves laughing throughout of the film.
We are so lucky to have a hilarious teacher. Yesterday, we were pissing ourselves laughing during the lesson.
The verb “piss" should be conjugated according to its tense.
If you swallow the bait, you take something that someone offers you, or agree to do something that someone asks you to do without knowing that it is a trick or way of getting something from you.
You can't just do whatever he wants you to do. Don't swallow the bait.