1. BLOOD
1.1. Get someone`s blood up
1.1.1. carry something in the blood
1.2. Be in someone´s blood:
1.2.1. To get something into the blood.
2. BONE
2.1. Make no bones about something
2.1.1. to say clearly what you think or feel although you may embarrass or offend someone
2.2. Have got a bone to pick with someone
2.2.1. a small disagreement with someone
3. ARM
3.1. With open arms
3.1.1. With happiness or enthusiasm.
3.1.1.1. “I know I'm not going to be greeted with open arms”
3.2. Keep somebody/something at arm's length
3.2.1. To avoid becoming connected with someone or something
3.2.1.1. “She doesn't talk much about it because she needs to hold these painful experiences at arm's length”
3.3. Give one's right arm
3.3.1. To be willing to give something of great value for someone or something.
3.3.1.1. “I'd give my right arm for a nice cool drink"
4. BACK
4.1. Behind someone's back
4.1.1. If you do something behind someone's back, you do it without telling them
4.2. To see the back of somebody/something
4.2.1. To be pleased when someone leaves or when something ends because you did not like them
4.2.1.1. I'll be glad to see the back of this thesis. It's been going on far too long.
4.3. Put or get someone's back up
4.3.1. If you put or get someone's back up, you annoy them.