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1. THO (Factor)
Short for Titty Hard On. When a female's nipple is erect an visible through layers of clothing due to cold, windy conditions

THO Factor: buffalo slang for wind chil
Man, teh THO factor is below zeoo out, I'm freezin
Must be cold out, that girl over there has a major THO
by Tech Geek Sep 7, 2004 add a video
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