An elderly man who still does gigs for 50 years thinking he'll be famous, but always/usually ends up ruining his life & fails to realise it.
Don't be a "Roddy Gordon", you'll ruin your life & be the underdog of society
A Persian expression, Sweating out of shame refers to an individual who is so ashamed, his face turns red & starts sweating
I was sweating out of shame after my wife caught me cheating