cadburys flake 

crumbles under any kind of pressure; named after a popular chocolate bar; irish variation is a roughan

The england team pulled a real cadburys flake and let in 4 easy goals in the second half

cadburys flake by naoisemac June 22, 2004

Cadbury Flake 

A person who flakes on events or plans. They crumble under pressure and melt away from their commitments. Someone who is all over the place and cannot get their sh*t together. They are generally sweet but unreliable.

"Tom isn't coming tonight"

- "Ahh what a Cadbury flake!"

"I know he's such a melt"

Cadbury Flake by SSoloo November 17, 2018