Someone who is completely straight-up, clean, and normally is oblivious to things such as popular slang, and the pop culture involving drugs, alcohol, sexual promiscuity, and such.
cool kid: "Dude, i got so slammed last night that i went to third with that nerd in my biology class!"
straighty one-eighty: "What are you talking about? slammed by what? and where's 'third'?"
cool kid: "Man, you're such a straighty one-eighty."
by Really cool Kid :) October 9, 2008
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