It's 'ol Buzz Killington, the old guy with a top hat that appears when you are having a crazy party. Basically he stops the drinking/smoking and proceeds to describe sketches of english people on bikes.
Peter: ''Man, that buzz kill was almost as bad as when Buzz Killington showed up at that party.'' (Cut away)
Very big. Huge. It's a mix between the words giant and humongous.
Her head was just, big... but her tatas were gibongous!