When a male gets hypnotized by a perfectly round and supple pair of ass cheeks. So much so that he may not even realize he is being completely obvious... usually resulting in being caught staring at the cheeky wonder.
Tom: "I was at the mall today sitting on the bench and I got slapped by my wife."

Bill: "Why? What'd you do?"

Tom: "I got a wicked case of bunnel vision when that skank walked by in those tight pants."
by Roody Poo February 19, 2010
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