Meanings of think professional in English

That was particularly the case with Rashford, who must think professional soccer is easy.

Did I think professional hoodlums would go after our business?

So I kept my eyes on Beverley's round bum and tried to think professional thoughts.

So don't think professional help is too expensive.

I didn't think professional sport would be targeted.

You would think professional musicians would be able to make a better fist of them, so are the not-as-good-as-they-really-should-be performances a policy decision?

"That's fine," I replied, faster than I thought professional, but I couldn't help it.