giggle loop 

You are surrounded by people for a moment of silence when the Giggle Loop begins...

Suddenly out of nowhere this thought comes into your head: the worst thing I could possibly do during a minute's silence is laugh. And as soon as you think that you almost do laugh -- automatic reaction. But you don't, you control yourself, you're fine. Whew.
 
But then you think how terrible it would have been if you laughed out loud in the middle of a minutes silence. And so you nearly do again, only this time it's a bigger laugh. And then you think how awful this bigger laugh would have been. And so you nearly laugh again, only this time it's a very big laugh, it is an enormous laugh. Let this bastard out, and you get whiplash. And suddenly you are in the middle of this completely silent room and your shoulders are going like you are drilling the road. And what do you think of this situation? Oh dear Christ, you think it's funny!

Coupling - Series 1 - Episode 'Sex, Death & Nudity'

giggle loop by Ross Brazier May 18, 2004

giggle loop 

Uncontrollable laughter, often snowballing beyond one's control and leading to some humiliation. Best observed when you are the only one laughing and no one around you knows why.

laughter at a funeral
laughter in a work meeting

giggle loop by jbastard February 26, 2003

giggle loop 

Taking the definition from jbastard on Feb 26 ... Uncontrollable laughter, often snowballing beyond one's control and leading to some humiliation. Best observed when you are the only one laughing and no one around you knows why.

AND ADDING
And people around you start laughing even tho they don't know what you are laughing about and then you really can't stop and they can't stop and when it all finally rolls to a stop with ribs splitting and face aching you tell them what started it for you and they are all totally bewildered. It's a viral giggle loop.

Eating lunch outside with friends and the wind makes Joe's hair swirl around like a dead squirrel rolling around in a Chicago wind, but by the time you stop laughing there is no way to explain it.

Nikki started a giggle loop and I couldn't stop busting a gut til my face fell off - hair and squirrels thing

giggle loop by 4giggles November 9, 2008

The Giggle Loop

The exponentially irresistible urge to laugh and giggle in inappropriate situations, such as when asked to take a moment of silence in honor of someone or something, or a solemn ceremony like a wedding or funeral.
The harder one resists the urge to laugh, the funnier the idea of what would have happened HAD you laughed becomes, resulting in an even stronger urge to laugh.

Coined by the British sitcom "Coupling".

"To know of the giggle loop is to become part of the giggle loop!"

The Giggle Loop by TFE July 4, 2008

gigglepoop

A foolish word to describe the act of defecating and/or breaking wind in your trousers as a result from laughing unexpectedly. It usually happens when you're most vulnerable and gassy.

"The other day I was sitting on my couch when Sean finished his joke, it made me gigglepoop."

gigglepoop by N uT December 29, 2006

giggleloop 

A feedback-type mechanism whereas someone who thinks about laughing (and doesn't) continues to think about how funny said laugh would be (while not doing it) over and over until they eventually cave, especially during a prolonged moment of silence.

Steve elicited a giggleloop when he kept himself from laughing at Jane's dead aunt.

giggleloop by Chico The Chairman July 7, 2007

gigglepoop

talking to someone, when all of a sudden you bust out a poopy in your pants situation

"hahahaha, I just laughed so hard I made a gigglepoop!!"

gigglepoop by Chad Bentley July 2, 2006