A fork of Rural Dictionary
Derived from the French term dejavu (which is when one feels that the experience s/he is going through is exactly like an experience s/he has gone through before), dejaboo is when the experience is UNPLEASANT.
Yesterday I was walking back to work with my Big Mac when I realized that I'd seen this exact same scene so many times before. And it wasn't dejavu--it was dejaBOO. I've been working as a clerk at the same firm for 25 years, & have eaten the same thing for lunch. BOOOOO
That sudden spark of feeling you get in your chest when you just realized your falling for your ex again.
I saw my ex yesterday and she was looking all sexy, man when I hugged her , I got a nasty feeling of Dejaboo.