bad blood noun [U]
feelings of hate between people because of arguments in the past:
There has been bad blood between the two families for years.

[TahlilGaran] Advanced Learner's Dictionary ▲

bad blood
feelings of hate between people because of arguments in the past.
Police say the arson attack may have been the result of bad blood between the two families.
(often + between)

[TahlilGaran] English Idioms Dictionary ▲

bad blood
anger or a bad relationship due to past problems with someone; unpleasant feelings between people
There has always been a lot of bad blood between the two supervisors.

There was much bad blood between the three brothers.

[TahlilGaran] English Idioms Dictionary ▲

bad blood
n., informal Anger or misgivings due to bad relations in the past between individuals or groups.
There's a lot of bad blood between Max and Jack; I bet they'll never talk to each other again.
Compare: BAD SHIT.

[TahlilGaran] English Idioms Dictionary ▲