HFS

Holy Fucking Shit

A mullet walks by wearing hotpants and tie dye. You look to your friend and say, "HFS."

hf

have fun

HF!

Have Fun!

Person 1: brb
Person 2: HF!
...
Person 1: back
Person 2: Did you have fun?
Person 1: Well I went to pee so yeah...

hfs

Short for Holy Fucking Shit.

HFS! You landed a Mctwist!

hf

Have fun

M: We r going to see tiesto tonight.
A: Have fun

HF

Holy Fuck!

"I didn't realize this essay had to be 20 pages. HF!"

HF

High Frequency

radio communication services from 1.8 to 29.7 MHz, used for long-range communications, the only band used for worldwide communcations other then mircowave and UHF satellite services

"Johnson, get Washingtion on the HF"