Originally Posted by TATTRAT

A worthless individual. The term originates from dried, conjealed bits of mixed male and female ejaculate that cling to pubic hairs at the base of the penis after coitus. They are disgusting and of no value to anyone.
Can you believe that fucking bum asked me for a dollar? What a cock nugget.

Although the origin of this word is unknown, it was believed to have first been used as a slang term by Homam Khoshaim in the 1990's. Coined as an alternative to "Douchebag", it has esentially the same meaning.
"Stop being such a cock nugget man"