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One who jumps into the middle of an online conversation between two people when it is obvious one of them is trying to make a move on the other. Usually happens on Facebook status updates or picture comments.
Mark: "Dude f**k Tony man!"

Luis: "What happened?"

Mark: "I was hitting on Rose on her status update and a couple comments in Tony jumps in and posts an awkward a** comment trying to join in on the conversation. Rose stopped replying i was so pissed!"

Luis: "Wow what a digital cock blocker!"
by Wanterito May 11, 2011