1. To take blood from one, as with a needle in a medical setting. The doctor wants to draw blood to see what my cholesterol levels are. We just need to draw some blood before the surgery.
2. To injure one or oneself to the point of bleeding. That bit of tissue is on my face because I drew blood while shaving this morning. I can't believe that skinny little kid drew blood when he punched the bully in the nose!
3. By extension, to cause one to become very angry or emotional. I'm usually a calm person, but Addison always manages to say something that draws blood.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
1. Lit. to hit or bite (a person or an animal) and make a wound that bleeds. The dog chased me and bit me hard, but it didn't draw blood. The boxer landed just one punch and drew blood immediately.
2. Fig. to anger or insult a person. Sally screamed out a terrible insult at Tom. Judging by the look on his face, she really drew blood. Tom started yelling and cursing, trying to insult Sally. He wouldn't be satisfied until he had drawn blood, too.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
Injure someone physically or emotionally. For example, The bullet skimmed his shoulder and barely drew any blood, or That reviewer really knows how to draw blood. This term alludes to drawing blood for diagnostic purposes.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.