1.) When you finger a chick and then give her a wet willy with the finger that was previously in her vagina.

2.) When you skip to world nine via the whistles obtained from Level 1-3 and the World 1 Minifortress.

3.) But mostly it's the first defintion.
Guy A: "Oh shit, son. I whistle tricked that bitch so bad that she couldn't hear for a week."

Guy B: "Heh, heh, heh."

Guy A: "Yeh, yeh son, dawg."

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Guy A: "Hey you playing Mario 3? Did you try the whistle trick I told you about?"

Guy B: "Yeah... she punched me in the balls."
by son dawg January 21, 2007
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