To slap high fives.

Alternative form of high five

Alternative form of high five

(surfing) A form of hang five move, but where the surfer keeps themself and their weight well back from the front of the board and just reaches out with one leg to get five toes over the nose (as opposed to standing properly at the front).

(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.

(surfing) This type of longboard move.

(In both the 12-hour clock and the 24-hour clock) The start of the sixth hour of the day; 5:00 a.m. (05:00). / (Only in the 12-hour clock) The start of the eighteenth hour of the day; 5:00 p.m. (17:00).

(historical) A 5.9-inch artillery shell of the kind used by Germany in World War I.

The questions who, what, when, where and why, useful in gathering information and solving problems.

(informal, idiomatic) A request to receive a high five.