What a Silver cod piece!

Blimey! I've been on the march wi Ally's Tartan Army, put the kilt on and hitched it round Europe to watch Scotland getting drubbed long before they got used to it - so I can appreciate the fun being had by these English footie knights on their way to a pub in Clapham with a telly and the Euro's.
But what's that cod piece about? Ouch!