Top Definition
Kill your fucking self.
A word used by Bitches to attempt sounding cooler then another person.
-Girl over hears conversation-
Yeah! OMG Justin Beiber is soooooooo cute!

Girl walking by mumbles...Kyfs
by Boss of the Boss September 12, 2010
1 more definition
Kyf
Kill your family
I'm gonna fuck your girlfriend

Alright Ill kyf
by Kfy October 16, 2010

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