bons vivants

from The Collaborative International Dictionary of English v.0.48

Bon vivant \Bon` vi`vant"\ (b[^o]N` v[-e]`v[aum]N"); pl. {Bons
   vivants} (-v[aum]N"z). [F. bon good + vivant, p. pr. of vivre
   to live.]
   A good fellow; a jovial companion; a free liver.
   [1913 Webster]