What do we mean when we say it today?
What do a Johnny Cash song, a mercenary film, and an Alex Delaware novel have in common?
They're all called "flesh and blood."
You don't need us to tell you just how popular this phrase is, because you've probably come across it yourself a time or two (or three). It's just one of those phrases that people say all the time. Nowadays, this phrase is all about family. Whenever we hear it, people are using it to make a point that family is important; blood is thicker than water and all that.