When an advantage causes that advantage to grow increasingly larger, typically with no hope of stopping it.
Bottom lane fed 5 times, and now Yi is snowballing out of control.
by Bo0m5l4ng September 14, 2016

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When someone is deceiving you into believing that they are something other than what they really are.
A co-worker at my job is snowballing the supervisor into thinking he is doing his share of the work. He actually is a slacker who is not pulling his weight.
by Olkskule May 11, 2016

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When a woman gives a man a blow job, then keeps the sperm or skeet in her mouth and then proceeds by making out with the man she had just given a blow job to. And while the woman is making out with the man, they empty the sperm, or skeet into eachother's mouth. Alternating back and forth.
Jimmy Goon was receiving a blow job from Tara. When she was finished they began to make out, and snowballing the sperm back and forth in their mouths.
by Hinka Hunka March 24, 2007

The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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Forming balls out of snow to be thrown at your friends in fun, or enemies in anger.
When I was a kid, my friends and I would go snowballing and have snowball fights.
by supertag November 20, 2005

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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The really hot gay sex practice of cumming in your partners mouth then swaping cum with him orally.
I blew a load in Jakes mouth and he snowballed me. We were snowballing.
by SM69 October 23, 2007

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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When two guys perform a 69 cum, then meet each other passing it from mouth to mouth
"oooo snowballing what fun"
by larrrrryyyyy October 28, 2006

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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When your sucking a guy's dick and he cum's in your mouth and you spit it in his mouth and he swallow's it...eww
I heard my x is in to snow balling man i'am so glad i left him , that faggot!

If your down wit snow balling and your a dude, does that make you gay?
by HOLLY CORMAN November 03, 2007

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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