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when your gerfing your hating on someone. when you gerf you hate on someone. you can be a gerfer and be a hater
Allie: He's so annoying i hate him and never want him to talk to me again.

John: i know man.

Mr. S: stop gerfing guys

Allie and John: sorry bro didnt mean to gerf
by gerfing hard bro June 07, 2011
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