A massive fart. So named because you must lift up one of your legs to properly release the pressure.
Guy1: "Where did you go?"
Guy2: "I went into the bathroom to release a massive leg-lifter"
Guy1: "Good thing you went into the other room"
Guy2: "I went into the bathroom to release a massive leg-lifter"
Guy1: "Good thing you went into the other room"
by Mathius_Dragoon March 3, 2010