look up any word, like bootylicious:
2. Lightbulb
To be a "third wheel" in a situation where only a couple should be together. Think of the single lightbulb in an interrogation room.
I wish Monica wouldn't be such a damn lightbulb... I want some quality time with my boo.
by Ayu Sep 26, 2004 add a video
1. Lightbulb
Word used to describe an inbred child that has a massive forehead.
That Drew kid is so creepy with his massive forehead.
It looks like a 'lightbulb'.
3. lightbulb
A breakdancing palm tree from the Hagaren fandom.
Q: How many Hagaren fangirls does it take to screw in a lightbulb?
A:....
Fangirls: OMFG WHAT IF ENVY *IS* THE LIGHTBULB!?!?!?
by wiremess Mar 4, 2005 add a video
4. lightbulb
Electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated.
Geek One: What do you do in your free time?

Geek Two: Change lightbulbs!
5. lightbulb
a bald-headed white man
May I change seats with you sir? The lightbulb directly in front of me is blinding me.
6. lightbulb
Noun.
Slang for a Crack-pipe. Mostly used by tennagers in Hawai'i, to throw off their parents and teachers to the fact they are Tweekers
Ed, bring your lightbulb tonite, Brock's got some good shit.
by mailmanjoe Jul 17, 2005 add a video
7. lightbulb
Glass tube which emits light when an electric current is run through it.
That is one NICE lightbulb.
by MoJo Apr 18, 2003 add a video
rss and gcal