Me-so-smart

NOUN:
An individual who, even though lacking in expertise, will flaunt their superior knowledge to others at random times in order to either appear more intelligent, out-smart others around them to make themselves feel more intelligent, or try to 1-up you to keep themselves from looking less intelligent.

VERB:
The act of displaying ones intelligence through unsolicited demonstrations.

ADJECTIVE:

A word used to describe responses or behaviors given by those who are trying to appear more intelligent.

NOUN:
"Johnny's being a me-so-smart again! He keeps randomly throwing random Spanish phrases into his sentences to make it seem like he knows Spanish."

VERB:
"I'm trying to fix this guy's computer, but he keeps pulling a me-so-smart and taking over before I get a chance to do anything!"

ADJECTIVE:
"Did you really just lecture an expert salesmen about the importance of good eye-contact? That was a real me-so-smart move man..."