The 'Cock of Pressure' is something that is often choked on when someone is playing a game and is on the verge of winning, however that person never wins, because they are choking on the 'Cock of Pressure'
Person 1: Are you winning?

Person 2: I nearly won, but I choked on the 'Cock of Pressure'
by iCaptain-Obvious March 31, 2011
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Cock pressure, is when a women walks into a room full of guys that want to slip her the bone...
"Man, you see how fast she left? Yah, she could feel the cock pressure"
by Bobby K February 24, 2012
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