Top definition
Acronym for:
If I Tell You What It Means I Would Have To Kill You
or
If I Tell You What It Means I Will Have To Kill You
Guy #1: How do you hotwire a car?
Guy #2: IITYWIMIWHTKY
Guy #3: What?
Guy #4: If I tell you what it means I would have to kill you
by Bloody GIR May 26, 2009
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