[1] : WordNet (r) 2.0

good time
     n : a highly pleasurable or exciting experience; "we had a good
         time at the party"; "celebrating after the game was a
         blast" syn: blast
see also:
blast 

[2] : Moby Thesaurus II by Grady Ward, 1.0

25 moby thesaurus words for "good time":
   action, ball, big time, due season, favorable opportunity, fun,
   fun and games, funmaking, game, golden opportunity, good chance,
   good opportunity, great fun, high old time, high time, laughs,
   lovely time, picnic, play, pleasant time, proper time, sport,
   suitable time, well-chosen moment, well-timed opportunity

Big Time >> B Words
Big Time, definition of term: Big Time
big+time_pag1.html

Common Good >> C Words
Common Good, definition of term: Common Good
common+good_pag1.html

Access Time >> A Words
Access Time, definition of term: Access Time
access+time_pag1.html

Baked Good >> B Words
Baked Good, definition of term: Baked Good
baked+good_pag1.html

Do Good >> D Words
Do Good, definition of term: Do Good
do+good_pag1.html

Common Time >> C Words
Common Time, definition of term: Common Time
common+time_pag1.html

Be Good At >> B Words
Be Good At, definition of term: Be Good At
be+good+at_pag1.html

At A Time >> A Words
At A Time, definition of term: At A Time
at+a+time_pag1.html