The idiom "bad blood" refers to a negative or hostile relationship between two or more people. It can also refer to a long-standing grudge or animosity between individuals or groups.
This phrase is often used to describe a situation where there is a history of conflict or tension between people. For example, if two coworkers have had a disagreement in the past and now avoid each other, you could say that there is "bad blood" between them.
The phrase can also be used to describe a situation where there is a general feeling of animosity or distrust between two groups of people. For example, if there is a long-standing rivalry between two sports teams, you could say that there is "bad blood" between them.
Overall, the idiom "bad blood" is used to describe a negative relationship or situation where there is a history of conflict or tension.
• The CEO's decision to lay off employees has caused bad blood between him and the company's shareholders.
• The political rivalry between the two countries has created bad blood between them.
• The long-standing family feud has created bad blood between the two clans that has lasted for generations.
• There is bad blood between my sister and her ex-boyfriend.
• The disagreement over the inheritance has caused bad blood between the siblings.
• The new employee's rude behavior has caused bad blood among the team members.