by Cartman555 May 11, 2010

by Love itw May 12, 2018

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.
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.
by THO December 28, 2005

by nazaneen December 6, 2006

by Don’tAsk5 June 24, 2019

Abbreviation for Titty Hard On's .. something a woman gets when the air is chilly or she is madly turned on.
by LostSoulColo69 February 28, 2018
