Helmet Chew - The act of a novice or rookie performing fellatio on an uncircumcised penis, and chewing on the excess skin during a flaccid moment.

History: Found most commonly among drunk girls after they have had sex with drunk guys
I woke up thinking I had stuck my cock in a grinder, she helmet chewed me last night and in the morning to wake me up.

or

She has a helmet chewing attitude.
by Rudrafter June 4, 2010
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