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1.
DLF
stands for Derby Lunatic Fringe, notorious crew of derby county.
D D DLF

forest fan:we got legged by the DLF last saturday
by halo October 23, 2004
 
2.
DLF
A DLF is a "Dear Little Firend" used for a friend you have who is close to you and considerably shorter.
He is my DLF.
by grr all the names are used >.< February 08, 2009
 
3.
DLF
Dick loving faggot
Dude, Your friend Drew is a dlf.
by natedog1226 October 12, 2008