Definition of all fives in English:

all fives

noun

  • 1Humorous. "on all fives": on hands, knees (or feet), and another part of the body (later especially the buttocks).

  • 2Cards. A variation of all fours in which the winner of a trick scores the face value of any trump cards it contains, as well as an additional five points if the trick contains the five of trumps.

  • 3Dominoes. A game in which points are scored only when the sum of the spots at the two ends is five or a multiple thereof.

Origin

Late 18th century; earliest use found in The Monthly Review. From all + the plural of five, after all fours.

Pronunciation

all fives

/ˌɔːl ˈfʌɪvz/