It simply means,

HOLY F*CKING GOD

(:
GUY#1: I got us tickets for AC/DC!!!

GUY#2: HFG. I love you man.
by claudzxrawr January 20, 2010
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Home Food Gang

for them broke boys who brings food from home to work.
Joining the HFG to save money on lunch.
by 2girls1cupnoodles August 27, 2018
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A gang full of HighFlyers ; HighFlyerGang
Did you see how hype HFG had the Fuckin Party 🎉?
by HighflyerGang April 18, 2015
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