Is "talk the talk, walk the walk" for the idiom or phrase?

Question

Could you give me more info about it. Ex: Usage and Example.Thanks!

Please let me know more about the specific usage, grammar.
I need to presentation about this topic. Thanks.
**BTW, I come from Taiwan**
Thanks for your time!

Answer 1

The idiom means that someone is talking big, but are they actually doing what they say or can do what they say. Someone who brags about something, but it's not true. It is used in a variety of ways.

"Don't talk the talk if you can't walk the walk"
"If you are going to talk the talk, then walk the walk"
"He not only talks the talk, he walks the walk"

All of them mean about the same thing. It means saying it is one thing, but are they doing it as well.

Answer 2

It's an idiom. It means that talking is relatively easy, and 'walking' requires more effort. So it is easier to talk about doing something than to actually do it.

Ex.: John says that he can play basketball better than you; but, in my opinion, if he's going to talk the talk, he'd better be able to walk the walk.