The act of whacking someone so hard with ones erect penis it leaves sizeable marks and redness and warmth and possible bruises.
by Adie88 September 30, 2018
When That guy enters the room swinging his giant Hammercock, there will be no women left for the rest of us.
by StinkySteve April 29, 2014
A revenge tactic in while a male tricks female into stand/holding a bent over doggy-style position. Then proceeds to run full bore towards ramming his hammercock into her vagina/anus thus impaling her and exacting revenge. Can also be applied to oral impaling.
"That hoe cheated on me so I hammercocked her ass!"
"My stupid teacher gave me a bad grade on my test so I hammercocked her mouth."
"Shut up or I'm going to hammercock your mouth!!"
"My stupid teacher gave me a bad grade on my test so I hammercocked her mouth."
"Shut up or I'm going to hammercock your mouth!!"
by Gogogosan September 05, 2009