Bing, Bang, Bosh! 

The same saying pish posh or bing bang boom. It’s used as a form of dismissal. Or you can use it to exaggerate an emotion. E.g. winning a game.

Lauren: “I’m going to be a mommy!!”
Jackie: “Bing, Bang, Bosh! It’s just an egg in a basket.”

Bing, Bang, Bosh! by Verven April 23, 2018

Bing Bang Bosh 

When you have a nice plate with a bitta chicken rice cheese milk and peas for tea time

MMMM I JUST LOVE EATING SOME BING BANG BOSH FOR TEA TIME

Bing Bang Bosh by benco555 April 2, 2023