Лондонский сленг

(do a) runner — leave an area unexpectedly, or the scene of a crime promptly. e.g. "Where that bastard gone ? I bet he's done a runner !".
(do me a) lemon — a popular phrase that I have had trouble finding a firm meaning for. I understand it to mean "do me a favour !" and can only think 'lemon' must be short for the Rhyming Slang for 'lemon flavour'
(do the) off /frank — to leave, "I'm gonna do the off". To 'do the Frank' is Modern Rhyming Slang for Frank Bough (off), "I'm gonna do the Frank".
(don't give) a monkey's chuff/arse/fuck/balls/fart — a term sometimes shortened to 'a monkey's' means you couldn't care less. e.g.. "I couldn't give a monkey's if she leaves tomorrow".
(old) joanna — a cockney term for piano. Pron. 'pianna'.
(on your) Todd — short for Todd Sloane, Rhyming Slang for 'own'. After the famous jockey. e.g. "There's you lot having a wild time and I'm left here all on me' Todd".