 A hatchet is a small axe. Why would you want to bury one? Dan, you really shouldn't have said that to Denise. She started it. She stole my secret muffin recipe. She wouldn't do that, Dan. She knows how important your muffin recipe is to you. Then why do her muffins taste exactly like mine, Anna? Dan, look, you need to talk to her and bury the hatchet. All this drama about muffins is a waste. To bury the hatchet means to make peace. We often use this expression when there are two opposing people or groups that settle their disagreement about something.