When a womans breasts appear to be of a large size, but when one attempts to fondle or grab them they promptly dissappear into the chest. (eg. filled with air)
Billy and Sally were under the slide at the play ground. As Billy attempted to go to second base he encountered a Houdinni!
by Danny C February 04, 2003

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Top Definition
While in the doggie style position you spit on the girls back . This will fool her into thinking that you just came on her . When she turns around you blow your load in her face.
Hey Jeff sorry but last night while you were asleep I showed your wife what a houdinni was.
by Patty k March 11, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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