Top Definition
When you cum on somebody's back and throw a sheet over them so it sticks and it looks like a cape.
He was forced to seek help from a psychiatrist after his obsession with supermanning got him into trouble with his latest girlfriend.
by wraftonstagboys June 19, 2011

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The act of lying face down, and placing arms in front of you, in a superman like manner.

No, it's not like planking.
Why would you even ask that?
What are you doing?
SUPERMANNING.
by ProSupermanner September 29, 2011

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A sex position akin to the missonary position, with the person on top extending their arms and legs and humming the superman theme.
S.C.: (Humming superman theme song)
S.K.: What are you doing?
S.C.: I'm Super Manning
by Nachington November 30, 2010

The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white 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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urinating in a trashcan out doors. you need to be laying on top tof the can (it is easier if you are a man) with your willy dangeling into the can then after you are ballanced stick your arms out in front of you and your legs out behind you and let 'er rip..
john was arrester while supermanning in public because urinating out doors is illegal
by landon franz May 17, 2008

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.

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