1. (noun) The incredible lack of interest one experiences after someone just told them that they had deja vu. Coined by Greek-American comedian Demetri Martin.
2. (interjection) Expletive showing frustration at the lack of interest one experiences after hearing about someone else's deja vu.
Person 1: Dood i just got super bad deja vu!
person 2: Really man? thats crazy. (under his breath) "blabla vu".