HFS (Hand Foot Switch): Two daters exchange a picture of their hand and foot. This is usually done as an act of trust. It's a small trend that started out in the UK and spread to Belgium and The Netherlands, where it is sometimes called hvw (Hand Voet Wissel)
Short for holy fucking shit. It is used widely among gamers and was started by a Deven in Mifflinville Pennsylvania. It is used in cases where you are very excited or taken back by something
HFS: NOUN- acronym for Ho Fo Sho, or Ho For Sure depending on your nationality. HFS allows the speaker to say "Ho Fo Sho" without letting people around them know their intended words.
Steve:"I hooked up with that chick, Pamela last night."
Tom:"sweet. isn't she an HFS?"
Steve:"Yeah, but whatever she is hot as hell. i feel bad for the guy after me, he got sloppy eighths.