A term generally used in referance to someone who acts stupid on purpose in order to make thereselves look cool.
Like when a person gets a joke perfectly but says that stupid, "Whahh..." to look cool and make people laugh. But everyone knows thats what there doing and they say, "Dude. Your being shortinic. Knock it the fuck off. Your not cool. You know what? Just leave dude. Just leave. Everybody who wants Mr. Shortinic to leave, raise your hand." And everyone raises there hand.
by BuriedInTheFlames June 05, 2009