have a ball

Likely from ball in the sense of a dance.

• "The kids had a ball playing in the fountain."
• "Are you hanging up a stocking on your wall? / It's the time that every Santa has a ball / Does he ride a red-nosed reindeer? / Does a ton up on his sleigh / Do the fairies keep him sober for a day?"
• "In my dreams I have a plan / If I got me a wealthy man / I wouldn't have to work at all, I'd fool around and have a ball"
• "His victim screams, he has a ball The bigger the head, the harder they fall"
• "When the party was nice, the party was jumpin' / And everybody havin' a ball"
• "“Well, after they retired down here, they must have had a ball ordering anything and everything.”"
• "I hope you had a ball in effacing lives!"
• "Yesterday was Thursday, Thursday / Today i-is Friday, Friday / We-we-we so excited / We so excited / We gonna have a ball today"

• have a whale of a time

• blast
• field day