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7.
1) adj. to turn off, or 'out', the lights

2) adj. when making sweet love to a girl, he pulls out before ejaculating and shoots on her face (see Bukkakke)
1) Time to hit the field. But first - Lights Out!!

2) Honey, if you don't bake me a pie, I'm going to give you Lights Out!!

3) That whore loves lights out all over her face
by Shawn Hunter - The Milf Hunter August 04, 2004
 
1.
When two balls are shot into the last remaining cup in a game of beer-pong, eliminating the chance of an opponent rebuttal
G1 "why didn't you take your rebuttal shots?"

G2 "Conner and Ipp just went lights out on us."

G1 " HaHa...you guys got fucked"
by buckkkkk April 23, 2009
 
2.
In sports, it means great performance.
"Maddux was lights out on the road, winning 8 of his last 9 decisions."
by erotica69 September 17, 2005
 
3.
To knock somebody out
*POW* Lights out mother fucker !
by ErikTheBeast February 23, 2006
 
4.

1. bedtime

2. time to die
Lights out little one. Its time to go to sleep.
by Light Joker February 10, 2007
 
5.
1) When a man ejaculates onto a person's face so their vision is blinded.

2) Choke a bitch
Shawne Merriman went lights out on Tila Tequila.

When I went lights out over this girl's face she couldn't find the handle to the bathroom.
by dodersesh September 07, 2009
 
6.
A term usually expressed when having sex with a "dog ugly" member of the opposite sex. Could also be used when slapping uglies with a PAT. “Lights out” is normally substituted for a lack of beer goggles.
Brian had to go "lights out" when he tagged PAT.
by Woody Johnson November 22, 2006