When a male shits into a female's neck and it falls down her cleavage resembling a waterfall.
Person 1: YO I GAVE THIS NASTY BITCH A HUGE NIAGARA SHITS LAST NIGHT!!

Person 2: oh shit you lucky basterd

Person 1: THE BEST PART WAS I TOOK ABOUT 8 LAXATIVES THAT AFTERNOON
by THE ASS FUCKER July 24, 2010

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Top Definition
Shit comes out of their mouth like water falls down niagara falls
I had sex!
You chat niagara shit
by Newlangsweg April 09, 2015

The Urban Dictionary Mug

Lotsa space for your liquids.

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Lotsa space for your liquids.

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Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt