Top Definition
The act of doing something so incredibly stupid while trying to get with a girl that it ruins your chances with said female.
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Auto-Cockblock Asphyxiation:
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At the party, Mark was hooking up with this girl. When he tried to ask her to come back to his place, he couldn't remember her name. She got so pissed, she stormed off. He totally auto-cockblock asphyxiated himself!
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Everything was going great with Lauren untill we got in the cab. We were making out in the back for a few minutes when all of the sudden I got the spins real bad from all of those tequila shots. I tried to hold it back, but I threw up all over her. Now she won't answer any of my calls or texts. I completely auto-cockblock asphyxiated myself!
by From Personal Experience October 18, 2011

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