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Large Flopping Boob , a large boob that is atractive yet sags in a depressing way...
Person one : I im 10th prestige on modern warfare two :D
Person two: your such an lfb :/
LFB by teh rockster May 18, 2011
LFB is an acronym for the phrase that a guy calls his girlfriend.

Usually results in girlfriend dumping guy.
You're my little fat bitch. (LFB)
LFB by woopsydaisy May 3, 2012
Little Fat Boy. Used to describe an attractive overweight guy.
Did you see that new guy in our math class? He is definitely an LFB.
lfb by T-top September 18, 2008
LFB means little fat bastard
LFB is somewhere eating 2 big mac's.
LFB by PrettyDivaQueen April 12, 2017
Lucky Fat Bitch, a rather rotund women who is very lucky.
That LFB just won a car on the price is right
LFB by Juaffe June 24, 2010
Lame Fuck Boy!!!!!
Hannah: omg Cole is such an LFB!!
LFB by Youreluckystar6969 July 16, 2017