phrases, sayings, idioms and expressions at

The Phrase Finder
Phrases, Sayings and Idioms Home > Discussion Forum

- We are also on

A Phrase A Week - Facebook Group & Follow aphraseaweek on Twitter

Re: Blood will tell

Posted by Gary Martin on September 14, 2010 at 08:54

In Reply to: Blood will tell posted by Aidan on September 14, 2010 at 08:52:

: I've heard the saying "blood will tell" used a couple of times. Does anybody know its origin?

I've heard it as 'blood will out', or 'bad blood will out', but I don't know the origin.