The meaning of "the writing is on the wall" is:
The definition of "the writing is on the wall" is:
(idiom) something very bad is about to happen
A: Do you think we are going to get fired?
B: The economy is bad, our clients are gone, and we’re not selling any products. I think the writing is on the wall.
The writing is on the wall for Bob and Mary’s relationship, because they are no longer in love.
From the Blogs: