When a woman with big knockers is at a concert and pulls out her tits. May also describe a woman rocking out with her tits out while listening to a song. Similar to rock out with your cock out.
This babe with huge knockers rocked out with her knockers out at the Slayer show!

I want to see all you girls rock out with your knockers out!
by revan86 November 24, 2010
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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
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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 14, 2009
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Pete exclaimed, "Dude, rock out!"
Chris said, "Psh, I rock out with my cock out!"
by KaitlynKarma[TM] May 11, 2008
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to beef it wit sum1
basically 2 hav a fight wid sum1
ok so u luv 2 get fresh yh cum we 'rock it out' den
by pwetty gash July 9, 2006
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To openly be a fan of any of the Star Trek series and/or films. Also known as a "Trekky".
Nerd #1: Did you hear about the Star Trek marathon tonight?

Nerd #2: Affirmative, Captain. I'm gonna Rock Out With My Spock Out.
by thebetterfriend2 February 8, 2010
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Dude who gets psycho stoned and/or drunk, thinks he's a rock star, and acts like an assclown.
Adan was wasted at the IU game and said, "I'm gonna rock out with my cock out" before he fondled his friends' wives and urinated in their cars.
by Anti AMac November 15, 2007
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