a gambling game in which two coins are tossed or spun. Bets are made on both coins landing with the same face uppermost
two-up in American English
(ˈtuːˈʌp)
noun
a game in which two players bet that two tossed coins will land either with matching or nonmatching sides facing up
Word origin
[1930–35, Amer.]This word is first recorded in the period 1930–35. Other words that entered Englishat around the same time include: DNA, kickback, logical positivism, preset, uncertainty principle