Verb: Late 20th century:

Any rejection or 'blocking' of effort to spend time or energy in the company of another person. This does NOT have to include the actual use ofa 'Cock' or regard the opposite sex.

"I just wanted to sleep in with my girlfriend on New Years Day, but her son called her at 2 a.m. to say he had vomited and expected that we would come clean it up. That was a serious 'cock block'!"

"I was on a date but Leo called, bored, and wanted his Mom to give him a ride home from his friends house at 2 a.m.! Dude, he 'Cock-Blocked' me again! WTF?!?"

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"I just wanted to sleep in with my girlfriend on New Years Day, but her son called her at 2 a.m. to say he had vomited and expected that we would come clean it up. That was a serious 'cock block'!"

"I was on a date but Leo called, bored, and wanted his Mom to give him a ride home from his friends house at 2 a.m.! Dude, he 'Cock-Blocked' me again! WTF?!?"
by D.J. Playnice January 7, 2022
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Cock-Blocking is when you stop a male from trying to hit on a girl.

It can also mean when you block a chicken on twitter.com.
"Hey this guy named chicken just called me a slur"
"Welp, you better get Cock-Blocking!"
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When somebody is being an pain in the arse and preventing you from doing something you are trying to get done. This expression is used as an annoyed slang response when this situation occurs.
Will you please stop fucking cock blocking me, nig?
by gameysy June 16, 2004
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Dean and Cas were doing the frickle frackle when Sam walked in being a cock block.
by Jennynovak May 26, 2015
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When a total dick of a president is rejected by a federal judge for his ridiculous executive orders over and over again.
"Mr Trump.... Your travel ban has been blocked... You cock! ". Damn, you've been cock blocked!
by Findamonium March 16, 2017
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the third type of blocking in football (when the game is on the line and you need to give the QB more time than run or pass blocks can allow) where a lineman pops a viagra, making sure the defender notices the easily identifiable buldge, so that said defender will lose all motivation to have any contact with the offender, giving up for the remainder of the play.
Cock blocking. *pushes right arm forward while left hand grabs genitals* Offense. 15 yard penalty. Repeat 4th down.
by Ian Wetzel September 18, 2004
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when you're talking up a bitch and a male friend of hers or yours comes into the conversation.
I was just about to close the deal with her and some Dick comes over and cock blocked me.
by Joe Bru October 18, 2006
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