'everyone/everybody and his/their uncle'

Meaning, roughly, way too many people.

There's an interesting discussion of this phrase, and of "Uncle Tom Cobley and all", at
[Dead link removed - ed] , with a link to
www.btinternet.com/ ~mark.cobley/uncletc/widecom.html .
Is anyone in the UK, or elsewhere, familiar with the 'Tom Cobley' expression to mean the same thing--or something else?

'Uncle Tom Cobley and all' is known in the UK as a line from the song Widecombe Fair. It is probably fading from the memory of most and I doubt many people under 20 would have heard it at all. It means 'all of an assorted crowd of people' - the human equivalent of 'everything; including the kitchen sink'. I've not heard it used in conversation for many years.