The expression is: Do not teach your grandmother to suck eggs. It means Do not presume to instruct an adept. In the days before toothpaste, flossing and dentures were common, many elders had no teeth. Toothless grannies all knew perfectly well how to suck an egg for nourishment.
It is an old British and Australian saying.
(Eggs)ams
To tread lightly on a subject
The quote, " as sure as eggs" as from To Kill A Mockingbird, by Harper Lee can mean many different things. But the most clear definition is that it's "somthing that you say when you are certain about what is going to happen or what someone will do." From The Free Dictionary by Farlex. http://idioms.thefreedictionary.com/sure+as+eggs+is+eggs
"Sucking" an egg means to make two holes in the shell and suck the raw egg out through one of them (the other one is for ventilation).There is another phrase, "Don't teach your grandmother to suck eggs," which means "Don't try to show off what you think you know to someone who actually has more wisdom."Here are some more contributions from our WikiReaders:To suck eggs is like to do something really simple. For example sucking eggs. Which is not common any more but must have been when this expression was created. Today it would be like teaching your grandson how to send a SMS or Text Message. The idea is that the person, in this case the Grand mother, would already know how to do it.
This phrase is used to suggest that someone is trying to teach something to someone who already knows it. It generally has a negative connotation as it implies the listener is being patronized or underestimated. It may not be well-received in a conversation, as it can come across as disrespectful.
It is an old British and Australian saying.
It means don't assume that you are smarter than someone older than you - they have experience and wisdom that you do not have at your age.
(Eggs)ams
easter eggs
To tread lightly on a subject
Yes.
Teaching or telling someone something they already know. Teaching or telling someone something they already know.
This is a humorous statement made by Mark Twain based on the proverb "don't put all your eggs in one basket." He meant, go ahead and keep all of your wealth in one location -- but watch that location securely!
Scrambling - gently frying lightly beaten eggs over heat - of eggs is universal, cooked wherever eggs are produced, in other words, everywhere. There is no specific place of origin.
Hype was implemented shortly after 1994 by Netscape in their browser software. The origin was that the developers liked easter eggs and inserted this one.
Breaking a few eggs