Top Definition
The act of secretly masturbating with your left hand in your left pocket, pocket launcher being an obvious term.

It works the same for right handed people but it does not have the same effect.
kid 1: hey man! that substitute teacher was soo hot!

kid 2: i know, i fired off a left-hand pocket launcher while everyone was silent reading.
by fenderbass7 September 20, 2009

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