look up any word, like fleek:
 
1.
A state of confusion, absent mindedness, and deep thought, usually brought about by a profound experience or idea, often by a near death experience. Can last from a couple of hours to a couple of weeks.
1. Survivng a car crash threw me into a blue funk.

2. Whats up with davo, he's not talkin'? He's been in a blue funk since his mate got shot.
by El_Diqo July 18, 2005
 
2.
Street term for methamphetamines - a narcotic putting you in a state of increased energy. The opposite of a barbituate.
Yo, Mickey, I'm tweaking.
Come over here and I'll hook you up with some blue funk, PeyPey
by Poopy Scooper February 22, 2006