Top Definition
SIW
Strong independent women. Above the level of petty boy drama. Never chasing after the guy, you make them come to you. Basically, a SIW never waits around. If someone doesn't come to her, she finds another boy toy.
Well she is a SIW and found some different meat instead.
by SEWYah February 20, 2011

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SIW
Self-Inflicted Wedgie.
Occurs when sitting on a couch or bed and you slide forward, but your underwear remains in the same place.
"Help! I need immediate testicular medical attention for an SIW!"
by derf26 June 09, 2015

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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

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siw
A body builder type with potential.

His cock is so huge that his women needs to be operated so his dick can get through.

- He usaully lives in near Ballerup (Denmark) but has also been seen in Hobro and Vejle (Denmark).

His tits is so big that he looks like a woman which is why he uses a BH.

Nice dick. Nice Cock
by siwiiii April 04, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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