When having to take a large, potentially smelly shit, the act of using another person's bathroom to drop a deuce
, which prevents bad smells in your own Works best in a dorm, frat house, or small apartment setting. Usually done covertly, like a sniper, so one is not caught before, during, or after the act.
Past tense: Sniper shat
After eating JT's Mexican food, I decided to sniper shit in the 4th floor bathroom.