The act of ejaculating into your hands and smearing the cum all over your knees. After this you slide across the ground on your knees, playing an air guitar, while singing Rockstar by Post Malone.
Wow Post, you look like a real rockstar with that rockstar!
by WHYTETHUNDA October 23, 2018
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Someone who is still passionately clinging to the rebellious spirit and style of the bygone rock n' roll era, even if the world around them has changed -a lot-. Whether this is admiration or eye-rolling depends on the speaker and the situation.

A person that channels their inner 80s rock god and project a misplaced confidence, oblivious to the fact that the people around them is more likely rolling their eyes than throwing up the horns.
My uncle insists on riding his old cruiser motorcycle. He thinks he's like a rockstar, but the exhaust fumes and loud noise annoy everyone. We just want to enjoy the music on our headphones without the constant clattering.

My sister just referred to Karen as a 'rockstar,' and Karen, in all her smug glory, took it as a compliment... We all knew Karen was being subtly made fun of for her antiquated, out of touch style.
by lou952w June 29, 2023
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a crack head. one who hits the stem.
he dont smoke weed , hes a rockstar
by splankinberry August 11, 2003
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verb - to blow someone off as if you are too important for them, like a rockstar
Dave was supposed to meet us at the club, but, as usual, he rockstarred us and didn't show.
by Larry Stone July 7, 2004
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Roxx was riding me and screaming OH, OH, OH. She wanted it all night, what a rockstar!
by jj April 9, 2004
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1.To become highly intoxicated on multipul drugs and alcohol.Usually
mixing various drugs and alcohol in a risky fashion as if one were Keith Richards.
1.It was my birthday so i got rockstar at the bar last night.
by Beanoh June 18, 2005
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To pay for a Hotel room in cash then proceed to have a hooker and crack party that leaves the room destroyed. When hotel security arives actual owner of room is nowhere to be found.
The american hockey team rockstared there dressing room after being horribly beaten. (ie)Broken windows, smell of urin and sex, overdosing prostitutes, Smashed toilet,
by Duke the iron lung February 4, 2007
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