"Colorless green ideas sleep furiously"

What is the meaning of this sentence “Colorless green ideas sleep furiously” by noam chomsky

i need your help

It has no meaning in itself. In a greater context there might be some clues as to its meaning.

it has a meaning !

In what language?

It has no meaning and was designed to have no meaning. It is a well-known coinage by Noam Chomsky to illustrate that a sentence can be perfectly grammatical and at the same time totally meaningless.

Not well known to me, but now I am enlightened. Thank you for the explanation, MM.

thank you all beeesneees and MM