have the time of life
have the time of (one's) life
To have an extremely fun, exciting, or enjoyable time (doing something). I traveled to France for the first time last summer, and I had the time of my life! A: "Did the kids enjoy the circus?" B: "Oh, they had the time of their lives!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have the time of one's life
to have a very good time; to have the most exciting time in one's life. What a great party! I had the time of my life. We went to Florida last winter and had the time of our lives.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.