Used to describe a girl so horny that she is constantly jerking off, in science, math, or an elevator. In other words, someone you don't want to talk to unless you're a horny guy.
"Yeah, we call her hand in her pants megna.... did u see what she was doing when Mr. Klang was explaining about photosynthesis??????????"
by TeenageLobotomy June 11, 2006
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