(n.) Occurs when a female wears glitter eye make-up and makes out (kisses) with a guy. By doing so, glitter ends up on his face. This same guy then "goes down" on this girl, resulting in the glitter transferring once again, only this time, to her clitoris. Hence, a glitter clitter.
He got glitter all over his face after making out with me, but I guess you could say he had the last laugh because I ended up with a glitter clitter.