have a rare old time

have a rare old time

To have a very good time (at or doing something). Ooh, a "Great Gatsby"-themed party sounds fun! I'm sure you'll have a rare old time.
See also: have, old, rare, time
Farlex Dictionary of Idioms.

have a rare old time

a fine and enjoyable time at a party or something similar. We had a rare old time at Tom's the other night. I haven't had a rare old time like that in years.
See also: have, old, rare, time
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • high old time
  • of old
  • make old bones
  • crate
  • for auld lang syne/for old times' sake
  • for old times' sake
  • bolt bucket
  • a piece of old tackie
  • be (as) old as the hills
  • any old