Posted by Smokey Stover on December 07, 2005
In Reply to: That's for me to know and you to find out posted by James Briggs on December 03, 2005
: : Can someone tell me what this means "that's for me to know and you to find out"
: It's a way of saying 'mind your own business' - I know what I know and I'm not going to tell you.
It may be common among children, but among adults it sounds very, very dated. That is, if adults ever said it at all.