Stands for "Fake Fist-Fight" greeting, and denotes the playful-macho act of two best buds joyfully saying hello by grinningly taking a few wild swings at each other, but of course never having any of the flailing punches actually "land"; both greeters purposely "swing wide" so that they safely miss each other every time.
An alternative to the triple-f greeting --- often practiced by sturdy-figured tomboys --- is to take huge "sweeping" kicks in each other's directions, while simultaneously trying not to topple over backwards themselves. Both of these actions may seem fun and "free-spirited", but there is always a definite risk of real injury with them; I prefer simple hugs and handshakes myself.
by QuacksO August 18, 2018