This page from the September, 1913 issue of the Ladies’ Home Journal featured what they called “good-time dresses.” I honestly have never heard this term used in vintage fashion before, but from looking at the illustrations it seems they are meant to be somewhat fancy and are made from soft, feminine materials.
“It is not necessary to choose an expensive material in order to have an attractive gown for ‘good-time’ wear. The designs illustrated on this page will prove effective if made up in any soft fabric, be it silk, wool or cotton. The little dresses shown above (Nos. 7883 and 7876) will be lovely of crepe de chine or chiffon, though for economy’s sake cotton voile or silk muslin may be used just as effectively. Shadow or Bohemian lace and soft ribbons form the simple trimmings.”