Self-inflicted cock block by doing or saying something so stupid, cheesy, or inappropriate that you instantly ruin any chance of scoring with the targeted girl. The girl will inevitably laugh at you later with her friends
I self cock blocked myself yesterday by telling a girl if she was a new sandwich at McDonald's she would be called McGorgeous. She spewed her drink in my face.
by Manduzo March 2, 2009
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A man than manages to block his own cock from getting action as a result of being repulsive and/or having no game.
Guy 1: You get it in last night?

Guy 2:Nah, bro. I had a Self Block Cock Block(SBCB) night.
by CSB Fern February 21, 2012
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A self (cock block) is when you are in a sexual situation but your nervousness prevents you from gaining an erection.
Todd: You hook up with that chick we met at that concert yet?
Kyle: I was gonna but I was self cock blocked cause she was (a score)
by Foreskingamer69 July 25, 2019
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