Someone who walks into a room and blasts a silent but deadly fart without saying anything as to get sick pleasure from others smelling your stinking ass.
person1: "Man, it smells like ASS in here"
person2: "Yeah, that is some stinky shit! Zach must have been in here, he's a fart factory."
Any brand, type, or flavor of frozen burrito, chimichanga, taquito, empanada, etc. that is so filled with unknown, gas-causing ingredients, you immediately know upon putting them in the oven that your night should be spent alone.