Urban Dictionary: headlights on

When a woman's nipples are obviously erect. Usually humorously called to attention.

"Honey, your headlights are on."

by tradesman March 31, 2003

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

her headlights were shining through her shirt

by handle August 14, 2003

When you can see a girl's nipples through her shirt, occurring most often on rainy or cold days

(rain falling outside)
Ben: Do you know what this rain means?
Paul: No, What?
Ben: Some girls will have their headlights on today.

by Sirk10 April 21, 2008

by Anonymous August 15, 2003

His lust was apparent when he laid his headlights on her headlights.

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 01, 2006