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2.
Basicaly to have fun partying and not giving a shit who's watching you and what they think.
Corey doesnt care what people think of him and tends to rock out with his cock out.

Just have fun and rock out with your cock out.
by theamazing! January 30, 2010
 
3.
To party hard without regard for consequences.
Fuck it dude, life is short, rock out with your cock out.

In the TV show metalocalypse the bassist would literally rock out with his cock out, even going as far as playing with his cock.
by letdagoodxroll March 27, 2010
 
4.
what Britney Spears likes to scream out randomly in the middle of concerts during her 2009 Circus tour
"Drive safe, don't smoke weed, rock out with your cock out. Peace out muthafuckas!"
by ilovetbag April 13, 2009
 
5.
Taking your openly gay chicken to a metal show.
"It's so nice that you decided to rock out with your cock out."
by drawmonkey September 29, 2011
 
6.
a ribald head turning practice where a guy flashes his ding dong to other people for amuzement, disruptive intent, to get attention or just a plain and simple gesture of defiance, contempt and rebellion. The left hand is on the willie and the right one can flip a bird, give a V or some other fuck you gesture. Sneering is optional.
1. I saw on PBS a miniseries about the history of rock'n'roll. On the episode about proto-punk there was a show by the Stooges. Iggy Pop reached into his short silver pants and stunned the audience by exposing his sex pistol and doing the rattlesnake shake. He was rocking out with his cock out.

2. the outgoing governor of Florida worked feverishly to give a pardon to Doors frontman Jim Morrison for rocking out with his cock out during a gig sometime during 1969 - 1971. The pardon was granted.

3. On the track "Rock Out" on the 2008 Motorhead CD "Motorizer" Lemmy exhorts you to impress your lady friends by rocking out with your cock out.

4. Trent got busted by the cops when he flashed his weenie at every neighbor who was home. He said to each of them, "This spud's for you" and walked on by. Not everybody wants you to rock out with your cock out.
by Redd Rockit August 30, 2011
 
7.
To play the guitar or Guitar Hero/Rockband either while naked or cockslapping somebody
Im sorry, youre not going to the guitar hero party. you can only rock out with your cock out.
by Arkaun XD October 15, 2008