have a good mind to do something

Từ điển Oxford Advanced Learner 8th

have a good mind to do sth | have half a mind to do sth idiom
1. used to say that you think you will do sth, although you are not sure
• I've half a mind to come with you tomorrow.
2. used to say that you disapprove of what sb has done and should do sth about it, although you probably will not
•I've a good mind to write and tell your parents about it.
Main entry: ↑mind_idiom