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3.
A haircut which is short in the front, and long in the back. Used around Southern California a lot before the more universal term "mullet" became popular, especially in Orange County. Pronounced SVELBEE/SFELBEE or shortened to SFELB.
I'm not going out in public with you until you cut that S.F.L.B.!
by greta von November 08, 2008
 
1.
see also mullet. this is an acronym for Short Front, Long Back. another common phrase is 10-90.
the dude keeps his hair business in front party in back. hes got a sflb.
by kirk November 22, 2004
 
2.
it means a mullet. short front, long back SFLB
by USNYJ June 05, 2003