Titty Hard On the act of ones nipples contracting and getting "hard"
Maggie was embarassed because all her class mates could see her T.H.O through her shirt.
Top Definition
Short for 'though.' Most often found in IRCs,IMs, and blogs.
Jeez like I saw this dude fall but he was ok, lolololol. Ouch tho!
by Dark Tree March 05, 2005
Slang word for "though" and used far too often by people who ride fixie bikes, hypebeasts, and any other person(s) who associates themselves with the media. More or less to followers of Drake and Kid Cudi.
Me: Wassup tho?
You: Nothing much tho? What 'bout you tho?
Me: Same tho. Wanna grab a bite to eat tho?
You: Alright tho! I'm hella hungry tho!
Me: Me too tho!
You: :) tho.
by realhiphoplives August 30, 2010
titty hard-on, nippin out;having hard or pointy nipples that can be seen through clothing
Dude that chick has major THO.
by PEEVE November 10, 2002
Tho. is the perfect period. It can go after any comment. Tho. works every time. Try it.
Its crazy tho. Isn't that cool tho. She is such a bitch tho. etc.
by E.Z.E. June 20, 2009
Titty Hard On.

Coined by William Boland in 1989. Although most likely used before then.
That girl was either cold or she liked what she saw cause she had a major T.H.O.
by Libraryguy June 25, 2009
Titty Hard On
I like to watch "Friends" because all those bitches on the show have THO.
by NIGGA_HATER August 09, 2003
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