Last year, while I was sitting at my desk, a coworker came up to me and said "I know this is a bit like teaching a grandmother to suck eggs, but...blah blah blah" And of course my response was "excuse me say what now?"
This wasn't the first time I'd heard this saying. But whenever someone does say it, I giggle.
Essentially "teaching your grandmother to suck eggs" is to tell someone something they already know or to tell them how to do something they already know how to do.
It frankly sounds a bit raunchy, don't you think - sucking eggs? I've asked different Australians where this came from and some would say something about hard boiled eggs..WHAT? But wikipedia says "sucking the contents of the egg out without damaging the shell." Besides at Easter when we decorate eggs, I didn't realise there was a whole subculture of egg sucking going on?
Have you heard this saying? Is it British? We don't say this in America do we?
Also, I'm sorry to keep banging on about this survey - but have you filled it out yet?