I would to know what does it mean the question" What would make you kick a dog?" Thanks for the reply. That is an idiomatic question?

Can I start by rephrasing your question?

Question: I would like to know what the question 'What would make you kick a dog?' means. Is that an idiomatic question? Thanks for your reply.

Answer: No, it isn't idiomatic at all. The listener would understand that you literally wanted to know what would provoke you to kick a dog.

If the dog tried to steal my food, for example a deer, I would kick it. But not if it's a poodle.

i never kick my dog ,i don't think you should kick you dog ,it's my friend.

good

Sorry, but this is a very bad example of "an idiom". I think I've found the source, and it looks very unnatural. It's not common at all, and it sounds more like someone trying to be funny.

Anyway, the idea is that something would make you so angry that you would do something violent and irrational. The thing that triggers your fury is very irritating but ultimately insignificant. Like a pet peeve that makes you see red.

Please, don't ever use this. I would understand you literally.