The light bulb moment is the moment in time when someone comes to the realisation that they are gay.
He had a light bulb moment whilst watching the gay pride parade when he realised that he was just like them.
by my-slant August 23, 2006
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Typically a phrase used for typically novice bodybuilders or gym rats who only work upper-body giving them the appearance of a light bulb. They tend to over-compensate for aesthetics neglecting their legs sometimes entirely. This occurs until enough people have told them their legs look tiny, and they begin to do squats and other leg lifts.
"Have you seen how huge John has gotten?"

"Yeah but it's all upper body, he's suffering from human light bulb syndrome"
by halfstable March 20, 2012
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An analogy describing someone who is not quick-witted and gives the impression of being not very smart.

airhead dimwittedç
You are going to ask John to hook up your PS4? Good luck on that one, you do realize he's not the brightest bulb on the christmas tree.
by TheBigCanucklehead March 15, 2015
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The dumb version of describing a florescent light bulbs that is twisted thanks to ENERGY STAR
I hate those new light bulbs!! You know the ones that look like pig tail light bulbs?

oh you mean the energy saving bulbs
by zachwarhawk March 9, 2011
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A female that just doesn't get it, no matter how simple you put it.
It turned out the girl I met at the party last week was a "burnt out light bulb", Dumb as a door knob.
by boobie_builder April 11, 2009
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A joke making fun of how many episodes it takes to do anything in Dragon Ball Z.
You: hey how many saiyens does it take to screw in a light bulb.
some guy: ok how many.
You:just one except it takes 20 episodes.
by *Cough* *Cough* April 19, 2016
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