Posted by John Wilson on November 23, 2006 at 02:55:07 from 202.154.138.90 user hugo.
In Reply to: Teach Your Grandmother posted by Ed Kiser on November 23, 2006 at 02:35:32:
I thought the full expression was “teach your grandmother to suck eggs” though it is not in the Penguin Dictionary of Modern Quotations.