When a woman has a very masculine back. This disturbing and very unfeminine feature includes any or all of these features: broad shoulders, large back muscles (lats and traps), or lots of moles or freckles.
Girlfriend: "Is that a man or a woman?"
Guy: "It's a girl, but that's some serious man back!"
by bumbobway December 23, 2005

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Top Definition
When you are fucking a girl doggie-style and her back is hunched over.
Steve: Hey, I heard you fucked Diane last night.

Ted: Yea I was hitting it doggie but she had man-back and it really turned me off.

Steve: That sucks, my girl arches it perfectly.
by murf09 July 01, 2009

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.

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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