The Collaborative International Dictionary
Mum-chance
Mum-chance \Mum"-chance`\, n.
A game of hazard played with cards in silence. [Obs. or Prov. Eng.]
--Decker.A silent, stupid person. [Prov. Eng.]
--Halliwell.
Mum-chance
Mum-chance \Mum"-chance`\, a. Silent and idle. [Colloq.]
Boys can't sit mum-chance always.
--J. H. Ewing.