Have a whale of a time
Definition 1 of 1
Pro Tip 1/3Informal Fun
The phrase is casual and suggests a high degree of enjoyment, suitable for informal settings. 
At the family reunion, we had a whale of a time sharing old stories.
Pro Tip 2/3Positive Emotion
It conveys strong positive feelings; used when an experience is exceptionally pleasing and exciting. 
She had a whale of a time on her birthday; the party was amazing!
Pro Tip 3/3Group Activities
Often used to describe collective fun in social gatherings or group activities. 
We all had a whale of a time at the beach volleyball tournament.