Top definition
Congrats. You are the 6 millionth person to have posted that question. SIYF.
by rumsponge February 21, 2007
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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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used for texting... I whooped your ass in madden last night siyf.
by Sammy J32 May 01, 2010
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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So is your face.

Fancy comeback only trumped by "Your Mom goes to College!"
Person A: You're a dumb fuck!
Person B: SIYF!
by fingal October 08, 2006
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Golden Shower Plush

He's warmer than you think.

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can i have some appeals? SIYF well then
by nothing works July 08, 2011
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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