in a big way—(coll.)
1. on a large scale:
- The company should be frugal, they say, but when it does invest it should do so in a big way.
2. with great eagerness or enthusiasm:
- Derek is crazy to take up dancing in a big way again. He adores all this old-time dancing.
in a great way—
1. (UK dated) living on a grand scale:
- She was very well married, to a gentleman in a great way, near Bristol, who kept two carriages!
2. (coll.) extremely well:
- Most of us will never do great things, but we can all do small things in a great way.