What is Pish-posh?
1.
When someone compliments you, and you're the shy type who just dismisses things like that, you can blush, look at your shoes and say this.
"My, Adrienne, you have beautiful eyes!"
"*Blushes* Ohhh, pish posh..."
2.
a word that u use when u dont have anything smart to say to someone that's lying and u cant prove it.
oh pish posh! (or u could say pish poshness)
See