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when someone takes the side of their(usually)pointer finger on one hand, or the front of a few fingers and moves them back and forth across the front of the nose, which slightly moves the nose's position left and right across that general area of the face, due to the nose itching.When being around someone who kerblocks constantly, you may get very annoyed; sometimes you can hear a little squeaky sound.
Kurt:dude,did you see kisty last night? He was kerblockin all night long!
Ja'Quez:yeah dude, I was getting really annoyed
by brett474 June 22, 2006
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