"pish posh" 的定义和意义

What is the origin of the idiom "pish posh" and when to use it?

The idiom "pish posh" is used to dismiss or reject something as unimportant, trivial, or insignificant. It is a way of expressing disbelief or disdain for a particular idea or statement. The exact origin of this phrase is not precisely documented, but it is considered a colloquial and informal expression that has been in use for many years. It is often used to express skepticism or disagreement in a lighthearted manner.