Top Definition
A mountain Bike with 29" wheels rather than the more traditional 26" wheels.
Oh man, My XXIX is a 29er! It eats up bumps and is a monster.
by Bun E April 05, 2007

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Loose chick. Ok, this is a little out there, pay attention. Stock market crash on Black Tuesday in 1929 started the Great Depression. A 29er goes down faster than the stock market on Black Tuesday.
Hey, dude, can you give me your sister's number? I heard she's a real 29er.
by Bthomps October 21, 2004

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.

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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
A new type of mountain bike, that is pretty much the only real type of mountain bike in existence (sometimes with 29 inch wheels, sometimes not).
"What kind of bike is that?"
"29er, f'yeah!"
by saxproaj October 09, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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