Teaching grandmother to suck eggs

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Teaching grandmother to suck eggs is an English language saying meaning that a person is giving advice to someone else about a subject of which they are already familiar (and probably more so than the first person).[1] "Egg sucking" removed the egg contents while preserving the shell intact. A small hole was made in each end of the egg, and the contents sucked out. The shell could then be painted or otherwise used for decorative purposes without it becoming rotten and smelling bad.

Origins of the phrase[edit]

The origins of the phrase are not clear. The OED and others[2] suggest that it comes from a translation in 1707, by J. Stevens, of Francisco de Quevedo (Spanish author):

"You would have me teach my Grandame to suck Eggs"

Recorded usage[edit]

“I remember my old schoolmaster, who was a prodigious great scholar, used often to say, Polly matete cry town is my daskalon. The English of which, he told us, was, That a child may sometimes teach his grandmother to suck eggs”

“But what am I about? If my grandmother sucks eggs, was it I who taught her?”

  • The phrase was used in the 1890s in a Punch magazine cartoon:[4]

"You see, Grandmama, before you extract the contents of this bird's egg by suction, you must make an incision at one extremity, and a corresponding orifice at the other." Grandmama's response is to the effect, "Dearie me! And we used to just make a hole at each end."

"To teach one's grandmother to suck eggs – To offer needless assistance; to waste one's efforts upon futile matters; especially, to offer advice to an expert. This particular expression is well over two hundred years old; it is just a variation of an older theme that was absurd enough to appeal to the popular fancy."

"... she was a sensible girl who didn’t talk very much or try to teach her grandmother to suck eggs.”

"Go teach your grandmother to suck eggs! I've been handling guns like this, flintlock and caplock, since before you were born."

  • The line was also used (as a reference to Burl Ives' character in The Big Country) in the sixth episode of the first season of The Ren & Stimpy Show in the infamous song "Happy Happy Joy Joy" where Stinky Wizzleteats belts out :

"I don't think you're happy enough! That's right! I'll teach you to be happy! I'll teach your grandmother to suck eggs! Now, boys and girls, let's try it again!"

"Don't teach my hamster to suck eggs!"

"The purpose of this exercise is to follow precise unnecessary directions issued by a higher HQ. You have been directed to be in possession of a fresh empty eggshell for no apparent reason. Simple issuance of tasks being insufficient in any anal-retentive, career-oriented, hopelessly bureaucratic military staff society, the staff of the higher HQ have issued the following instructions."

  • Sméagol instructed his grandmother, as related in the Riddle Contest in Chapter Five of The Hobbit:

"But suddenly Gollum remembered thieving from nests long ago, and sitting under the river bank teaching his grandmother, teaching his grandmother to suck — ‘Eggses!’ he hissed."

  • The phrase is used repeatedly by multiple characters throughout The Black Company series of books:

"Go teach your grandmother to suck eggs, Croaker" said Lady to Croaker in Shadow Games (novel).

"Go teach your granny to suck eggs." Which was a waste of colorful language. The expression had no meaning amongst these peoples. said Croaker to Sleepy in Soldiers Live.

Related phrase[edit]

The use of the phrase "Suck-egg" for "a silly person" dates back to 1609, in the OED.[4]


  1. ^ "The Free Dictionary". Retrieved 2009-05-07. .
  2. ^ "The Free Dictionary". Retrieved 2009-05-07. 
  3. ^ Henry Fielding. "The History of Tom Jones a Foundling, Chapter 12". Retrieved 2009-05-07. 
  4. ^ a b "alt.usage.english". Retrieved 2009-05-07. 
  5. ^ "The Phrase Finder". Retrieved 2009-05-07. 
  6. ^ "IMDb". Retrieved 2009-05-07.