"Ah, brilliant! Been having a Butcher's for your flats all day, Mate. Thought I'd cooked summat up. I'm well knackered. I can tell you! I could do with a bevvy and a kip!

Plus, some bloke diddled me brolly in the queue for the khazi in
blighty.

Butcher's = butchers hook, Cockney rhyming slang for having a LOOK
Knackered = Worn out/Tired
Bevvy = beverage/drink usually alchoholic
Kip = sleep not sure of origin
Diddled = fiddled/stole
Brolly= Umbrella
Khazie, more usually Carsie = Toilet
Blighty= British soldier slang for the UK, going home is described as going back to Blighty.

Giok