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1.
Learn How to Fucking Spell.

A phrase used by REAL Hackers/Crackers who are annoyed by Script Kiddies and other wanna-be "Hackers" that use so-called "Leet Speak" (L337 5P34K) -- especially if the "Leet Speak" is over-used, or used inncoorectly.

See also: LHFT

Wanna-Be Script Kiddie: I M 4 L337 H4X0R!
Wanna-Be Script Kiddie: W1T M4D 5X177Z!

Real Hacker: LHFS, moron!
by Pseudo Wisdom November 28, 2008
 
2.
LHF
Long Haired Fucker
Where'd that LHF go?
by Hey Mom! September 10, 2013
 
3.
LHF
L.esbian
H.omo
F.ag

Someone who goes above and beyound, the lines of gayness.
Ryan is a LHF all he ever does is talk about nuts!!!
by Kimoman March 22, 2008