We don't have synonyms for hang five yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are hang fire, hangfire and hang time.
(v) :
(surfing) To perform a longboard move where the surfer goes to the front of the board and rides from there, one foot on the nose and the five toes of that foot extended out over the front of the nose, the other foot placed further back.
(v) :
(surfing) To perform a longboard move where the surfer goes to the front of the board and rides from there, one foot on the nose and the five toes of that foot extended out over the front of the nose, the other foot placed further back.