clubbish

adjective3

1. •
   Resembling or characteristic of a club (social establishment).

   • She remembered a long-ago dinner they shared at Chasen's, one of Hollywood's most clubbish and exclusive restaurants […] — 2009
2. •
   Disposed to club together.

   • Some of the Centered Workshops get very clubbish, even encounter-groupish, I was told, and some don't. Ours didn't, although we certainly had a good time together. — 1978
3. •
   Resembling or characteristic of a club (weapon).

   • For had not she bene mercifull, my ship had rusht on Rocks, And so decayed amids the stormes, through force of clubbish knocks — 1599