ANYBODY SEE LA LA LAND??

Its just a phrase Izzy. Like "All paint and no engine","All hat and no cattle"

You probably say "All talk and no action" when you talk about Neville Chamberlain

I don't think people have spoken about Neville Chamberlain for a long time. In Southampton talk is of Wembley and the EFL cup.

"All mouth and trousers" is a common term for a bs merchant.

Jack Whitehall did say that he had a South African teacher who said he was 'All fart and no poo.'