Meaning of seven-up in English:

seven-up

Pronunciation /ˌsɛvnˈʌp/

noun

  • 1US Cards
    historical A variation of all fours in which seven game points are available per round.

  • 2Now usually in form 7-Up. A trademark for: a clear lemon and lime flavoured carbonated soft drink.

    7-Up originally contained lithium salts and was advertised as a cure for hangovers.

  • 3North American A children's game in which seven chosen participants must each attempt to tap another player in the wider group without being identified.

    The seven chosen participants move silently among the rest of the group, who keep their heads down with their eyes closed and (typically) one thumb raised; each of the seven taps one of the group on the head or thumb, after which the players selected in this way try to guess who touched them.

Origin

Mid 19th century; earliest use found in New York Constellation. From seven + up.