When one orgasms so hard that they make retarded faces and are unable to function properly afterwards

One who is dumbtardedly infatuated with mansyrup / mammalsauce.

It is the feeling of pure retardation after an orgasm. You are unable to communicate or operate your body.

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.

A very retarded person who is also very horny