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1.
East Coast Muther Fuckers
E.C.M.F. A 3 PATCHED(outlaw)motorcycle(biker)club.
Principled as defined in our bylaws. Not for the weak of heart.
Strong, unwavering constitution.
Live to Ride-Ride to Live.
by ACTION-EAGLE May 23, 2010
 
2.
stands for "East Coast Mother Fuckers"
this "crew" does nothing but surf, skate, (some) poke smot, and sleeps.

Man we suck
Oh Shit! Here comes the EcMf!
by TJ "stinky poot" May 31, 2004