Heathrow
Yes, as in the airport.
Drawl is still intelligible to speakers of standard English.
Cockney rhyming slang is just unintelligible without a local guide, a set of reference volumes, and perhaps some sort of Rosetta Stone to serve as a visual translation guide would help.
Exactly, that is the point.
The alleged origin of the rhyming slang is when various nefarious cockney characters, would meet in pubs to plan criminal activities.
The coded language was supposed to be not understandable to any policeman listening.
That's what they say, but I think its a load of pony, me'self.