Souscrire French
recherchez un mot, comme poopsterbate :
 
1.
English expression meaning that a person is giving advice to someone else about a subject that they already know about (and probably more than the first person)
"I'm probably teaching granny to suck eggs, but............." (then explain in great detail what they already know/are expert in)
de rawkaren 9 octobre 2013
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