Hitting yourself in the shoulder with the hand on the same side. Used to signify that an awkward moment has just occurred. Generally, if surrounded by other cool people, they will begin to awkslap too in recognition of the awkward moment.

It is used worldwide.
"Hey did you just see that really fat chick run by in a two-piece?"
"ewwww"
"yeah dude, awkslap so hardddd"

-everyone awkslaps-
by mkn888 August 31, 2011
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