Waving a wooden leg -- wellerism?

I was listening to Sydney radio this afternoon amused by the range of eccentric expressions volunteered by listeners.
One that amused me was as follows:
"Too late" she said "and waved her wooden leg"
I wondered if this was a kind of "Wellerism" an indeterminate attribution "as even blind Freddy knows ...", "every man and his dog" etc ...
A number of very amusing offerings are listed here:

"Stand back and let the gentleman see the monkey"
"Carrying on like a pork chop" How does a pork chop carry on? "as useful as a wigwam for a goose's bridle"
"sitting there like cheese at four pence" (I understand this was of Yorkshire origin.)
"You must think you're Lord Blooody Muck almighty!"

I wonder what other eccentric phrases posters remember from their youth?
cheers
Chrissy