'Seven-up' definitions:

Definition of 'seven-up'

From: WordNet
noun
A form of all fours in which a total of seven points is game [syn: seven-up, old sledge]

Definition of 'Seven-up'

From: GCIDE
  • Seven-up \Sev"en-up`\, n. The game of cards called also all fours, and old sledge. [U. S.] [1913 Webster]