What is the precise meaning of ninja cutting onions?

Ninja's are supposed to be warriors with great stealth. There can be a Ninja in the room and you wouldn't even know. So when a Ninja is doing anything, you will feel their action but you will not be able to see them. read more

Even though the term ninja refers to a marshal arts, it is using some times as a phrase to denote quick and lighting speedy action so as to hide from opponents vision. Cutting onions is one another phrase using to express watering of eyes without feel of cry. read more

I have never kept cut onions for more than a day and never used if I left them outside on the counter and forgot to keep in fridge. That is the best answer from my experience. read more

ninjas cutting onions unknown A slang term for crying while observing something tearjerking, such as a sad film scene. This refers to both a ninja's alleged stealth abilities, and the irritation of the eyes by the fluids in an onion. read more