Verb. The act of frat hopping too much.

Taking down multiple frat brothers in the same frat/taking down multiple frat brothers in general
Gail bleeds greek because she goes frattin too much.

Last night Gail went frattin and came home with a brother.
by myfriendisahoe May 4, 2009
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The act of wearing polo shirts and other preppy clothing to go out and party.
Jennifer:Did you see Joe tonight?
Lucy: Ya, he was frattin hard.
by tylerwhofishes April 13, 2009
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