Cockmurder is when an event takes place that just so happens to decrease your sexual arousal. Actions, Words, facial expressions.. Anything that drops the mood dramatically causing a loss of an erection.
Mike: So John what happened with that girl last night?
John: Well we were having sex and she let out the longest, nastiest fart.. It was total cockmurder.
Mike: Yeah, Sally laughed at me when I took my pants off, that wasn't as bad, but was still cockmurder.

Paul: HAHA I heard you couldn't perform the other day!
Thomas: When she took off her panties and I saw that rain forest bush of hers, it was cockmurder. I was afraid of catching it on fire it was so large.
by ex1z7 April 28, 2006
Get the cockmurder mug.
Beating someone to death with a huge cock. Usually done with a few slaps to the face.
If that bitch doesnt pay up, ima cockmurder her!
by TheNiggadamus January 26, 2005
Get the cockmurder mug.
it was created by me and my friends and it is when you put a big cock deep in someone`s throat until the person dies from no breathing, it has been difused and changed the meaning by Omegle
I am having sex and then I kill the girl cause she cant`t breath "She has been cockmurdered!"
by mettrau February 18, 2010
Get the cockmurder mug.