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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 September 07, 2004
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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