1) When you eat Taco Bell and then you make out with someone else who also has recently eaten Taco Bell.

2) The nickname of someone who has Taco Breath regularly
Mallory: I can't makeout with you.... I have taco breath
Dan: It's ok, I have taco breath too!

*initiate makeout session*
by Tomcat Tommy August 31, 2010
Get the Taco Breath mug.
when a person, likely someone you're attracted to, has hot breath but for some reason the very nature of them having hot breath turns you on.
Duante: Ms. Pounall is so damn sexy plus she has that hot beef taco breath that i love
by DuanCulo aka Duante Amorculo January 4, 2015
Get the hot beef taco breath mug.