for sport; for the fun of it; for the fun of the thing; just for the hell of it
- sports decisiveness
- It was very sporting of you [You were very sporting] to keep it a secret.
- junior sports development
- It was a fun evening.
- That would be the greatest fun of all.
- What fun it was to wind it up!
- These things will happen.
- These are things that were proposed as reasonable things to do.
- Example is not the main thing in influencing others. It is the only thing.