used to say that you think you will do sth, although you are not sure
have a good mind to do sth
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.
have a good mind to do sth
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.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición