This term applies to people who are extremely intelligent. If a brainiac were a superhero, their brain would definitely be their secret weapon.
My boss Paul is such a brainiac I don't ever have to use Google, HE is my human Google.
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Someone who is addicted to getting head.
Girls love Metaphor and I love em back, addicted to getting head, chicks call me the brainiac.
From the Boondocks on Adult Swim
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"...then he got stung by the entire swarm of bees. What a brainiac."
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When sombody gives you head while playing videogames
Yo girl can you give me a brainiac while I play Call of duty
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damn man, i smoked too much, i feel all brainiac.
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