Not to be confused with a misspelling of Comcast. Cocmast is a covert abbreviation of the term "cockmaster" (see definition) for use in a formal or public setting wherin penis garglers may be found. Upon spotting of said dick destroyer, person A will expound to person B the severity of their "cocmast" bill in relation to the perceived level of the spotted cockmaster's cock mastery.
Bob: "Hey Bill. how much do you think this month's cocmast is gonna be?"
Bill: "At least 150 dicks--I mean dollars."
by kewlbeanzdood November 07, 2013

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