The act of sending someone subconscious or subliminal messages which make that person not want to sleep with another person or individual.
"The way he disses every other guy in the room leads one to believe that he actually earned his B.S. in subliminal cockblocking."

or

"His texts always seem normal, but in reality they're just his way of subliminal cockblocking."
by Lawyergal83 October 20, 2011

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