When that one person has to but into a conversation and interjects their know it all mentality, pissing off the other members of the conversation.
Damn, Angelica is such a Brainy Smurf! No one gives a fuck what her opinion is.
by Cool James and Black Teacher October 31, 2016
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Getting your testicles gargled untill they turn blue (blue balls)
Dude why cant you sit down?

Oh I just got The Brainy Smurf
by minority426 December 24, 2009
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