本日の英語フレーズ　 Today’s English Phrase

Meaning: have a private or selfish reason for doing something. Have an ulterior motive.

Example Sentences:
1.- He should not become the chairman of the committee as he has too many axes of his own to grind.
2.- When I see him strongly supporting someone who could be his rival, I cannot help but think that he has an axe to grind.