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To be completely dumbfounded at something but can't help laughing at the absurdity of the given situation
Jim: I totally had a flablagraff. I couldn't understand why Phil took that can of Cheez Whiz and shot it down the back of his pants.

Vince: No kidding. I guess he just likes to cut the cheese.
by Mr. $mithers January 02, 2009
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