Top Definition
The sudden impulse to turn around and smile at your friends the first time you fire a fully automatic weapon.

-This phenomenon also happens each time you shoot an automatic weapon larger in caliber than your previous experience.
Guy #1- Dude, I got to shoot a .50 cal for the first time today and I was all smiles.

Guy #2- Sounds like you couldnt hold back the machine gun reflex.
Guy #1- Well they say, "Happiness is a belt-fed weapon".
#machine #gun #reflex #smile #automatic weapon
by epimethius05 March 10, 2010
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