1. The main villain from the movie Road Warrior
. A frighteningly muscle-bound man in a strange (semi-nude) executioner-style getup, mostly balding wispy hairs (presumably due to radiation exposure), and speaking in a deep Arnold Schwarzenegger-esque accent. Possibly in homosexual relations to right-hand-man Wez, but don't you dare make fun of him. Nobody defies the Humungus. NOOUBODY! Well, except Max...
2. Alternately used to describe anyone overly intimidating and/or badass, but a bit quirky behind the scenes and possibly with a "touch of the lavender."
1. Greetings from the Humungus! The Lord Humungus! The Warrior of the Wasteland! The Ayatollah of Rock-n-Rollah!
2. Hitler was a HUMUNGUS Fuhrer.