1. Back
1.1. See the back of something:If you are pleased to see the back of something/someone, you are pleased that you no longer have to be involved with them
1.1.1. Example:The hotel staff were glad to see the back of such a difficult guest.
1.2. put someone´s back up: To annoy somebody.
1.2.1. Example:You really put her back up there, John.
1.3. put one´s back into something:work very hard at something
1.3.1. Example: "She put her back into it and got good results."
1.4. Behind someone´s back:do something secretly
1.4.1. Example:She went behind my back and told my boss I wanted a new job.
2. Bones
2.1. Make no bones about something:To say something that can be disgusting in a direct way.
2.1.1. Example: He didn´t make any bones about it and told his wife he had met another woman.
2.2. Have got a bone to pick with someone: have something (usually a complaint) that you want to discuss with someone
2.2.1. Example: He´s got a bone to pick with her since she refused to help him with the report.
3. Arm
3.1. Give one´s right arm: To say that you really like something.
3.1.1. Example: "I would give my right arm for a car like that."
3.2. Keep someone at arm length:Keep your distance from somebody or something.
3.2.1. Example: I try to keep at arm's length from Larry, since our disagreement. I keep Tom at arm's length because we don't get along.
3.3. Open arms:Is to greet and welcome eagerly
3.3.1. Example: They received their new daughter-in-law with open arms.
4. Blood
4.1. Get someone´s blood up: To get very angry, to be very nervous.
4.1.1. Example: It gets my blood up to see how bad behaved those children are.
4.2. Be in someone´s blood:To get something into the blood.
4.2.1. Example: She´s really good at dancing. It must be in her blood.