1. An odd label in telling someone that the person has an I.Q. level of a gold fish (pescado meaning in Spanish fish) and an attitude like a jackass. Basically the person is nonsense.

Hence "Pescado the Jack"

2. Hard headed person who is a know-it-all who is really a fool
"If we are going to survive we're going to build a fire"

"Maybe I don't want to build a fire, maybe I want to find rocks and spell S.O.S"

"Listen to me Pescado the Jack, it the dead of night, we are stranded on island, and it is Cold as Hell--"

"Hell can't be cold because it hot."

"Idiot..."
by Ace Carde March 21, 2010
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