A mullet walks by wearing hotpants and tie dye. You look to your friend and say, "HFS."
by Jacob November 12, 2003
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Person 1: brb
Person 2: HF!
...
Person 1: back
Person 2: Did you have fun?
Person 1: Well I went to pee so yeah...
by NEEEEEEEEEEEEEEEEEEEEEERD. December 19, 2011
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M: We r going to see tiesto tonight.
A: Have fun
by Michael Grechka August 31, 2003
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"I didn't realize this essay had to be 20 pages. HF!"
by cgmech March 7, 2018
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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"
by IrishRepublicanArmy October 12, 2003
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