have a bone to pick with someone
have a bone to pick with someoneINFORMAL
If you say that you have a bone to pick with someone, you mean that you are annoyed with them about something, and you want to talk to them about it. `I have a bone to pick with you.' She felt justified in bringing up a matter that she had been afraid to discuss before. Note: This expression may refer to the fact that dogs often fight over bones.
have a bone to pick with someonehave reason to disagree or be annoyed with someone. informal
A bone to pick (or gnaw ) has been a metaphor for a problem or difficulty to be thought over since the mid 16th century.