When your getting frisky with a girl and you wind up on the floor. She then notices the ugly as sin coffee table you have and that ends your chances of getting any.
I was gunna get lucky but she saw the ugly ass coffee table i made during weilding and got coffee table cockblocked
by Lorck13 February 28, 2011
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Typically a female, but can be a gay male too. One whos a total prude, and refuses to do any sexual thing with a guy, "blocking his cock."
"Thats her man, shes the one that i begged and begged for the last week, and still ain't got shyt outta!"
by The walking naughty!! July 7, 2005
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v. To self-destruct in a clearly advantageous situation that is leading to sexual intercourse and/or foreplay.
Danny: What happened? I thought she liked you?

Brent: I thought so too! I mean, one minute we were making out, then I started talking about the differences between Pokemon and Yu-gi-oh, then ...

Danny: Wait, seriously?! ... Only you could cockblock your own cock.
by Flashbang11 July 19, 2010
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A self caused cockblock, with so much blocking power, it can only be caused by a major act of stupidity; Brought upon by themselves with good intentions for the receiver, but ended up bitting them in the ass. SPTC for short.
Guy 1: "Ha! That creeper just asked the hottest girl at university for nude photos via text!"

Guy 2: "He's got major Self Propelled Torpedo Cockblock now; He's never getting laid."
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1. When you cockblock but unknowlingly do it

2. To interrupt a private moment or conversation with two people by accident or unintentionally

3.To make up for your accidental cockblocking afterwards you say U.A.C.
Friend:Man you totally ruined me and Jesse's convo,i was about to get her number.Cockblocker!

Friend:My fault U.A.C.(Unintentional Accidental Cockblocking)

Friend: Alright man its cool then
by Sneakermandan July 17, 2010
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defining a cockblocker with a pseudonym when not able to directly state said cockblocker's name.

Very useful when the cockblocker is in close vicinity of you and/or partner. Also very useful as a label to said cockblocker
Girl: What's wrong baby?
Boy: I don't want to say right now ok?
Girl's Dad: Are you sure son? You do seem a little tense and uptight

Sinister look in Dad's eyes
Boy: Well, i would be more relaxed, but once again Mr. C. M. Cockblock strikes again (winks at girlfriend without Dad noticing)
Girl's Dad: Laugh out loud (he's too douchey to write lol)
by djhiphopisdead June 18, 2010
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noun, type of female that not only cockblock stigmata's a male by marking her territory, but then pulls off a psycho bitch 180 by playin hard to get, thus making you loose all chances of getting laid.
John, "wait so she wants to dress you and then tells you she just wants to be friends?"
Jack, "ya man she must be a cockblock stigmata psycho bitch 180 whore
by niggman star33 August 8, 2011
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