Definitions by Graank

sour 

The opposite of sweet. Comes from the late 70's philosophy that all things in life are either simply sweet, or simply sour, or sweet and sour.
Preceded with "oh so" in extreme cases of sourness.

That was sour when it rained while we were playing golf.
Oh so sour, don't fart in the car!

sour by Graank July 16, 2008