Titty Hard-On. When a womans nipples are erect and can be seen through her clothing.
You must be cold becasue you've got some mad THO going on.
by Cartman555 May 11, 2010
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What idiots use to say though or people who are lazy when they text
That shirt tho
That hair tho
by Love itw March 18, 2018
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Titties Hard On. In cold weather girls tits seems to get hard, therefore, creating the saying THO.
Also, it can be referred to as a group of friends that have been together throughout highschool and sit against a wall. They only associate with eachother and rarely with any of the other fake annoying people around them.
Dude that girl has THO. check it.
Do you know who we are? we are THO. and we sit at the wall.
by THO December 14, 2005
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-a really sexy guy who jokes way too often
-big flirt
-needs to get his license
"damn, i cant believe he played you again"

"yup, thos is a hoe"
by nazaneen December 03, 2006
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Abbreviation for Titty Hard On's .. something a woman gets when the air is chilly or she is madly turned on.
Look at my nipples, I've got THO's, it's chilly outside!
by LostSoulColo February 28, 2018
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A short version of the word “though”, and is mostly used on social media and texting
Me: Why do you hate me?
Ex-Friend: Just cause I do!
Me: But why tho?
by Don’tAsk5 June 24, 2019
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