A male that is good at whatever he does.
by Greg C November 26, 2003
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Popularised from the “ZEN AND DEAN” podcast:

An individual who acts/cares about what others think about themselves, which prohibits them from reaching their full potential of being on a rockstar level of confidence and ambition in life.

AKA: DON’T BE A CHICKEN!
Cockstar = Chicken
Dean: ZEN! Be a Rockstar, not a Cockstar!
by Zen and Dean January 16, 2023
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A girl that only sleeps with RockStars and thus obtains some level of fame simply because of the penis that she's had inside her vagina.
That girl slept with every rock star I know, she's a Cockstar.
by Jesse Brede January 7, 2009
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A member of a famous band who doesn't give a shit about his fans and sells his shit for ridiculously high prices, but people will still buy it because he's usually considered cute.

I.e, Kellin Quinn
Person 1: pfft, Sleeping with Sirens suck
Person 2: I know! They're such cockstars!
by kingjoshua August 23, 2013
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Someone with a rockstar like derogatory disposition towards others, who does not posses the fame, position or other qualities to warrant such a definition, and is generally a douche.
"Bill do you see that pretty boy over there trying to pick-up Kate?"

"Yeah that guy thinks he's so cool, what a fucking cockstar"

Or

"Hey Jim do you remember last night, you were shit bombed. You were hitting on every girl in the place, and telling stories out your ass."

"Yeah I guess I was being a bit of a cockstar."
by Bustedcoolguy April 22, 2009
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An insult for Rockstar Games and their horrible decisions.
Guy1: Dude did you hear that Rockstar uploaded another update?
Guy2:Yeah Cockstar Games really messed up this time.
by DankMemeBunny February 15, 2018
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a five o clock cocktail consisting of: Captain Morgan's original spiced rum, Coca Cola, and rockstar, delicious on the rocks, with exactly five ice cubes. Invented by curtis siebaneller in fort collins, colorado.
Shit man, I be sipping on that captain cockstar, getting mad faded,
by 310 Cockstars August 22, 2007
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