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1.
Wang 'N Cheese
Male Genitalia
"Joe had a big bowl of cock nachos last night."
by Badong July 31, 2003
 
2.
The word "Cocknacho" has two forms:

It can be used as an insultive noun to describe a person or thing that one finds displeading.

It can also be used as an adjective. (rarely)
Noun: "Man....Jared is such a cocknacho."

Adjective: "Jesus, Jared, that was a pretty cocknacho thing to do."
by jackboots November 10, 2004