Shake the bun. Is it Hunan dialect?

No, according to the information inquired, Shaking Steamed Bun is a famous stalk, which originated from a video of the shopkeeper's photo. In this video, Daxiang talks about pasta while eating steamed buns, and suddenly the camera turns to the steamed buns in his hand. Then Daxiang started shaking steamed bread crazily, and called it shaking steamed bread, not Hunan dialect.