Top definition
A really hip, slang way to say what's up man? Applicable in any situation; to ask what are you doing? how are you doing? what would you like to do? what are you planning on doing? or just a general 'how's life?'

American in origin but became popular in the UK.

Derived from adjective "mousey," a similar word with multiple meanings including icky, lame, suspect and/or grayish brown.
Hey Saracen, what are you micing?
by Lord Lambert July 02, 2009
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