Top Definition
"What the fuck are you doing mother fucker?" Similar to asking the question "wtfrud" but conveys more attitude and excitement. One might use this when setting up a night of heavy drinking.
Jack: wtfrud?
Bill: Idk.

vs.

Jack: WTFRUDMF?!
Bill: NOTHING! LETS DRINK BEER!!!
by HankStain April 14, 2011

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