Top Definition
The act of ejaculating on the ribcage of an anorexic whore, and then offering her payment in the form of an apple pie.
Dude, I totally gave Susan a ribzuba last night; she was even cool enough to share the pie.
by Arthur T. Read July 10, 2008

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When a person plays another person's ribs with their fingers while also playing their butt like a tuba.
Cody: What instrument do you play?
Matt: I play the ribzuba, man!
by Barneybacktrack March 18, 2009

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