To let off seam. Usually with built up emotions.

Vented is to be triggered. In a way that one vents.

The period of time, before which you must eliminate solid waste matter from your body, where your sphincter slightly opens to slowly relieve the pressure caused by heavy amounts of poo gases in your rectum. Quite simply, right before you have to take a big dump, shit stink creeps out of your ass in long, silent, slow-like poots. The only remedy, of course, is taking that big aforementioned dump.

a thing impostors go into to hide

Your the imposter in among us, and you use this to escape after the crime. Don;t be suspicious, and vent out, come in the same room and act like you saw someone else do it. Let them take the blame.

The act of entering or exiting a vent or hole in the ground that only impostors can access in the game "Among Us."