Buns can refer to different things depending on the context. Here are some possible meanings:

• Buttocks: In American English slang, buns refer to the buttocks.
• Small bread: A bun is a small, round bread made of wheat flour and baked in an oven.
• Hairstyle: A bun is a hairstyle that involves a tight coil of hair on the top or back of the head.
• Person who is fond of good eating: According to Dictionary.com, buns can also refer to a person who is fond of good eating.
• Slang term: "Buns" can be used as a slang term to mean "bad" or "low quality".

In summary, the meaning of buns depends on the context in which it is used.