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When someone sucking your dick bites down really hard, often bruising or cutting the sensetive tissues of the penis. This often occurs by accident when a someone is giving their partner "road-head" or the act of giving a blowjob to someone driving a car.

Pronounced "chomp-age"
Man, I dumped that bitch after she gave me some rude chompage!
by nixonsfinest July 12, 2010
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