"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.
"Don't teach your grandmother to suck eggs" is an expression meaning "Do not presume to instruct the adept." It comes from the notion of old age being a toothless condition.
Little House On The Prairie The original expression is: Don't teach your grandmother to suck eggs. It means Do not presume to instruct an expert.
Cowboys loved a colorful phrase! This was a descriptive phrase for onions. They're round like eggs and they stink.
A website is not a physical being, therefore the answer would be no, it does not suck eggs for breakfast. The only way that it would be feasible to suck eggs for breakfast would be if they were living entity.
It, depends with her willingness, if she is willing, there is no reason as to why you should not teach your granny to suck eggs.
The phrase "suck it blue" comes in during scenes when the reds are dissing the blues, there are many episodes with the expretion
you suck eggs:)
you can suck eggs
you suck eggs