odd or even
noun
variants:
or odd and even
or odds or evens
Definition of odd or even
: one of several games of chance or skill in which there is guessing or betting as to whether a certain number will be odd or even: such as
a
: a game in which one player selects and holds an odd or even number of counters (as beans) and the other guesses which it is
b
: a game of betting on casts of dice or turns of a wheel
c
: a simplified form of fan-tan (see fan-tan sense 1)
d
: a mathematical game similar to nim in which the object is to take or leave an odd number of counters