When someone, or some group achieved a blocking move of something big that you were trying to archive.
The D.N.C. really COCKBLOCKED their entire party when they COCKBLOCKED Bernie Sanders again! He was their best chance !
by Polybius September 17, 2020
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WHEN YOUR PLAYING CALL OF DUTY HEHE WITH YOUR FRIEND AND HE LUNCHES YOU INTO LAVA OR A DEATH BARRIER

YOU THEN WANT TO PUT YOUR COCK IN HIS SCREEN :)
NO YOU COCKBLOCKED ME YOU FUCKING BITCH!!!!!
NOW WE LOST... I HATE YOU :(
by LJEFLKJJKFEVKLJLK October 27, 2017
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A cockblocker is a person who prevented his/her male friend from having sex by being really annoying or interupting the couple. Being a cockblocker might ruin your friendship by quite a bit, unless it's your best pal that might forgive you after a couple of days.
"Hey, what the hell was that for?!"
"What do you mean?"
"You god damn cockblocker, you ruined it all."
by CoffeeGoSlurp September 22, 2021
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A cockblock/cockblocker is someone of annoyance (a fucking dick) and usually refers to someone who attempts to stop people from achieving the task of asking a girl out.
'Hey, is he bothering you?'
'No actually, he's my boyfriend, go away you cockblocker.'
by Latenightdrinker43 June 11, 2022
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When you are the Utah Jazz, and because of Kobe's 60 pointer, you get destroyed, demolished, and your career gets ended because of a 37 year old Mamba.
Man 1: Damn bro, we just lost to the Lakers in the deciding game to get to the playoffs.
Man 2: Damn bro! You just got cockblocked by Kobe!
by KobeBryantAids February 27, 2018
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