The visible outline of a woman's nipples especially when they are erect. Erection can occur due to the change or drop of weather or temperature in an environment, sexual excitation or constant friction. This appearance may get a lot of men aroused.
"girl, I can see your headlights", "look at her headlights", "Are you cold, because I can see your headlights?"
by nelle D. April 26, 2013
The front portion of a car that emits a beam of light.
The headlights were so bright we could see the whole road.
by Perreault December 2, 2006
A big pimple or zit, usually bright red and/or throbbing, right smack in the middle of your forehead. It is usually very conspicuous and someone will almost certainly call you out on it.
John: yo man... Did you see how good Cindy looked today?
Joe: ya dude.. So hot... Except that big headlight of hers almost blinded me.
by anonu April 22, 2010
When a woman isn't wearing a bra.
I saw this girl at Farmers tonight... Her headlights were on.
by Joe Burns November 20, 2001
used to refere to someone who is on meth due to how the eyes seem to be wide open and dialated
by Anonymous August 18, 2003
Verb: To put a bud in the end of a cigarette and smoke it.
Noun: A bud in the end of a cigarette.
Hey you want to smoke a bowl?
Nah I'm just going to headlight it.

Hey are you guys smoking a joint?
No, its a headlight.
by Roysten November 25, 2008