Top Definition
A cumtard is a shortening of the phrase cum drinking retard.

Used as a way of letting someone know that you consider them to be a retarded cum receptacle.
Fiaz is such a cumtard!
by roger August 26, 2004

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When one orgasms so hard that they make retarded faces and are unable to function properly afterwards
I pounded her so hard that se became a cumtard
by 50gray March 26, 2015

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One who is dumbtardedly infatuated with mansyrup / mammalsauce.
Maxwell forgot to wipe his chin before opening his bedroom door. What a cumtard.
by Biscuit the Unbreaded November 25, 2008

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