2 definitions by m. w.

To prevent one using one's cock in the manner that one desires.
Neutering Antoine, the cute cute cat, was the ULTIMATE cock block.
by m. w. November 25, 2006
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(you should be able to figure out the definition based on the context of the example below).
"tony is a gaycud".
by m. w. May 10, 2005
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