Top Definition
Someones kid brother, whom they refer to as a baby, despite their brothers actual age.
Older Borther: "so hows my baby brother doing?!"

Younger Brother: "Shut up, im 24"
by cornandhash January 31, 2011

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A Tiny person that can be annoying and fun to pick on.
They sometimes hit you with golf clubs in an attempt to ask you to play.
When in a car they scream and have a loud annoying laugh while you watch a movie, which totaly ruins it.
Baby Brothers rarly are good,quiet, can talk, and dont ruin laptops with sticky hands and pop their mother so kindly gave to them.
Baby Brother :Waaaaaah!
Olderbro: In watching a movie,shh!
Babybro:(sees funny part) AHAHAHAHAHAHHEEHEHEHEHEAHEHAHEAHEAHEAHEHUEHEAEHAHEE!!!!!!
Olderbro:screw this, im nnot watching it anymore.
by Rambo1283291048 September 17, 2010

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