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Any player, (mainly campers) using a Heartbeat sensor on Modern Warfare:2. They depend entirely on the attachment to get kills rather than looking at the center of their fucking screen and using their own eyesight.
Militia Player: "LOL. I defused that bomb and that other guy didn't do anything about it. I mean shit, I was practically right in front of the him!"

Sir Kibble: "Dude WTF?! Why didn't you kill him?? We could have won!"

ShowMeYoMoves: "I didn't see any red on my Heartbeat sensor.."

Sir Kibble: "You fucking Heartbeat Slut, he had Ninja Pro!"
by Chaotic Enigma May 11, 2010
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