Top Definition
a person on a mission related to "Open" applications and operating systems. Someone who passionately supports Open source as a development methodology. Someone who support the development of source code for software that is made available for public collaboration, and it is usually released as open-source software.
Microsoft moved to appease its critics and reassure regulators by proclaiming that Office 2007 SP2 will support rival file format OpenDocument Format (ODF) 1.1 used by openistas such as IBM and Sun Microsystems.
by Michael Jahn October 23, 2008

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