A gesture of celebration or victory in which two people slap their hands together at shoulder height or higher. / (card games, uncountable) The game of cinch.

To slap high fives.

Alternative form of high five

Alternative form of high five

(of fuel) Having a high octane number, good anti-knock characteristics; used in high performance vehicles. / (by extension) High powered, energetic, forceful or dynamic.

The electronic reproduction of a given sound or image with relatively high accuracy. / A high-quality reproduction of sound.

(of a sound system) Characterized by minimal distortion.

Indignant and enraged.

(idiomatic) Resentfully or furiously.

Nervous; anxious; excited or excitable.