look up any word, like doxx:
 
3.
The nearly invisible, faint smoke breathed out by a person who just inhaled the smoke from another person's cigarette (see second hand smoke), which is then breathed in by another person near them. What that final person then breathes out could technically be considered fourth hand smoke if inhaled by yet another person, but scientists are still debating on how harmful, if at all, fourth hand smoke is.
Steve: "Hey sweet thang, my aunt just died of lung cancer."
Jennie: "Ohhhh, that's so sad. Too many kools?"
Steve: "Nah, fucking third hand smoke. That shit's deadly when you're 90."
by Thizzcobar August 14, 2010
 
1.
Second-hand smoke suffered through inhalation of someone else's clothes, car, etc. At work: someone's paperwork, file folders, etc. In breath: usually accompanied with alcohol or coffee.
I about choked from third-hand smoke when Tammy was talking so close to my face!
by KarlaSue2001 July 28, 2006
 
2.
Those who have been around people who have been around people who were smoking.
Or, being in places where smoking has occured, thus being tainted by a smokey smell.
I encountered third hand smoke when my husband returned from a bar.
by Katie R October 14, 2007
 
4.
When you makeout/kiss someone who is a smoker, and u get that taste/smokeness in ur mouth
At the club, it wasnt such a good idea to make out with every guy on the floor since 80% of them i got third-hand smoke from.
by Kttttt January 01, 2007