What does what's your rush mean?
Have you ever heard of it before?
I ran into this expression while seeing two different movies - The Truman Show and Pinocchio.

Truman stops his wife who is about to leave home for work.
She tells him she is really late for work and just goes out. Truman says to her "What's your rush?"
"Surgery." she replies. (She is a doctor or a nurse)

Pinocchio was racing against Jiminy, the talking cricket on the way home.
Fox stops Pinocchio and says "Well, well, Pinocchio. What's your rush?"
Pinocchio replies, "I gotta beat Jiminy home."

I am also curious to know if the expression is natural to say and often used these days.I appreciate all of you answering my question.I'm glad to know that it's not unnatural at all. Because another native speaker told me that it's unnatural to say.

Question

What does what's your rush mean?
Have you ever heard of it before?
I ran into this expression while seeing two different movies - The Truman Show and Pinocchio.

Truman stops his wife who is about to leave home for work.
She tells him she is really late for work and just goes out. Truman says to her "What's your rush?"
"Surgery." she replies. (She is a doctor or a nurse)

Pinocchio was racing against Jiminy, the talking cricket on the way home.
Fox stops Pinocchio and says "Well, well, Pinocchio. What's your rush?"
Pinocchio replies, "I gotta beat Jiminy home."

I am also curious to know if the expression is natural to say and often used these days.I appreciate all of you answering my question.I'm glad to know that it's not unnatural at all. Because another native speaker told me that it's unnatural to say.

Answer

What's your rush simply means "why are you in such a hurry?" Or "why are you rushing?"

"What's your rush?" is a common phrase here in Britain.

Answer

In the UK I would not say that it is a very common phrase. We would probably say it as 'what's the rush'.
 
'Rush' is another word for 'hurry' and so the phrase basically means 'why are you in a hurry?'.

Hope that helps

Answer

It means "why are you in a such a hurry?". You can see from your examples that the question follows an action that is being done quickly.

We normally say " what's the rush? " but both are widely used.