I first heard the expression in that great western movie The Big Country (great soundtrack, BTW), coming from the Burl Ives character.... "Go teach your grandmother to suck eggs! I've been handling guns like this, flintlock and caplock, since before you were born."
Other great lines from Burl Ives in that movie: - "Sweet on you, is she? If you ain't the mother and father of all liars!"
- "You don't shoot an unarmed man... not while I'm around."
- "I'm a law-abiding man. That is, if there's any law to abide by."
- "You want me, Pa?" "Before you was born, I did."
- "He's gonna be the most surprised dead man you ever saw."