butt out Informal
Meaning: If you want to tell someone quite forcefully to mind their own business, you can tell them to butt out.
- butt out I was having an argument with my girlfriend when Pete told us to cool it, so I told him to butt out.
- butt out My sons were having a fight about something when their older sister tried to get them to stop. They both got angry with her and told her to butt out.
If someone tells you to butt out, you should probably