Meaning of teach grandma to suck eggs | Babel Free

Definitions

Forma verbal. Verb. [C2]

Examples

“I joined an audience of 500 or so direct marketing evangelists some years ago to hear Bob set out these seven key points. It just didn’t occur to him that he was teaching Grandma to suck eggs because Bob knows the strength of this formula. His formula.”

“There are quite a lot of other useful macros embedded in the header files to cover many different functions, far more than we can list in detail here. However, at the risk of teaching Grandma to suck eggs, here is a neat way to find out where the macros are defined. Once you know where they are, it’s easy to take a peek at the header file in question and find out the rest.”

“‘Well, son, quite a few Americans have joined us, but none of them, except you, is on this boat. They’re all in basic training and if they get through that, they’ll go for flight training. / ‘What sets you apart is your flying hours. You have more than the average Air Force pilot. Why waste time teaching Grandma to suck eggs? We need to get you into a cockpit as soon as possible so you can start making a difference.[…]’”

CEFR level