Top Definition
(n. Dee-bik)A military acronym used to title the person of a group who shows the greatest mental retardation.

(DBIK=Dumbest Bitch I Know)
Private Johnson: "Our platoon commander is the biggest DBIK ever."

Private Gonzalez: "Yeah; he doesn't know his ass from his elbow."
by semperfi626 April 15, 2009
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