don't teach your grandmother how to milk ducks
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Alternative form of don't teach your grandmother how to suck eggs.
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “don't teach your grandmother how to milk ducks” mean?
Alternative form of don't teach your grandmother how to suck eggs.
Is “don't teach your grandmother how to milk ducks” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.