perhaps the most obscure piece of slang in Britain, translates to Prision via this thought process Kermit The Frog (from the Muppets) - Frog and Toad (rhyming slang) - road, meaning Down The Road, slang for being sent to prision. the term was used occationally by Only Fools And Horses character Derek 'Del Boy' Trotter, the series was written by John Sullivan, an authentic Londonor and a knowledge on slang.
'Sent Him Down The Kermits' 'Gone Down The Kermits'
incredibly cold, freezing in fact.
derived from the saying 'it's cold enough to freeze the bollocks of a brass monkey' it would need to be incredlibly cold to bring brass to a point where it would just become so brittle it broke away