teach (one's) grandmother to suck eggs



teach (one's) grandmother to suck eggs

To try to teach an older person who is wiser and more experienced and wordly than a young person may think. Why are you explaining basic typing to Ethel? Yes, she's 70, but she's been using a computer since before you were born—quit teaching your grandmother to suck eggs.
See also: egg, grandmother, suck, teach

Common Names:

NameGenderPronouncedUsage
LeocÁDia-Portuguese
Mareikemah-RIE-kə (German)Frisian, German
Mahometus-Arabic (Latinized)
Harshada-Indian, Hindi, Marathi
Katina-Greek, Macedonian
Esquivel[eskivəl]