A British cup a is a 'cup of' coffee or tea. Tea is also 'Rosie Lee' in Cockney rhyming slang. And stairs are 'apples and pears' boots are 'daisy roots'. My maternal grandad was a Cockney which is a person born in a particular area of London so I heard quite lot of it from my mum when I was growing up.What is a cuppa?
Sorry to hear your knee is hurting. I'll agree with you for healing in prayer.