Sour Grapes

From Falsipedia

Thought to be derived from a dirty limerick entitled "The Fox and the Grapes" by Aesop the wino, who was a portly connoisseur of cheap wine and also the worlds first graffiti artist known for his crude cartoon drawings on bath house walls in ancient Greece. This popular phrase has more to do with the bad taste you get in your mouth after drinking grape soda then about some fox smuggling grapes. The phrase as slang actually gained popularity in the 1930's when Abe Nehi, a purple skinned dwarf salesman went stab happy on then soda mogul and inventor of the Grape Nehi, Claud Hatcher over trade mark rights that he felt he deserved.