Headlights 

used to refere to someone who is on meth due to how the eyes seem to be wide open and dialated

Whats up headlights?

Headlights by Anonymous August 18, 2003

Headlights 

A game played in a vehicle amongst a large amount of people. Whenever your vehicle drives past a vehicle with a headlight or taillight out, everyone hits the roof of the vehicle. Last one to hit the roof removes an article of clothes. First one naked looses.

The last time I played headlights I was the first naked!

Headlights by McCormick&Cocanane April 11, 2015

headlights on

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

"Honey, your headlights are on."

headlights on by tradesman March 31, 2003

Headlights off the hook 

The act of going braless.

Take a look at Jody. Homegirl has her headlights off the hook.

Headlights off the hook by gulliver1953 January 20, 2009

headlights on

When a woman isn't wearing a bra.

I saw this girl at Farmers tonight... Her headlights were on.

headlights on by Joe Burns November 20, 2001

headlights on dim 

Someone who is so stuoid they look stupid i.e. a face that just says "DUUUH"

"that guy is looping through life with his headlights on dim!"

headlights on dim by Crazy Doc J August 17, 2006

Deer in headlights 

A mental state of high arousal caused by anxiety, fear, panic, surprise and/or confusion, or substance abuse. A person experiencing the "deer in headlights" syndrome often shows behavioral signs reminding those of a deer subjected to a car's headlights, such as widely opened eyes and a transcient lack of motor reactions.

Mike doesn't like cars; he's like a deer in headlights when he goes to his driving lessons.

Deer in headlights by Erelgey June 28, 2008