Teach your granny to suck eggs

Meaning

Do not lecture someone more experienced.

Usage

Used when newbies offer unwanted advice.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Victorian warning against patronizing elders.

Used in English sayings since the 1800s.