A slingshot, a plane, a gesture, a round idiom.

Explanation: Shot: Iron shot or clay shot used in slingshots. A place the size of a projectile. Describe the place as narrow.

From: "Historical Records Biography of Ping Yuanjun Yuqing": "This tiny place, give it, so that Qin will attack Qi Wang again next year, and Qi Wang can't be cut?"

Example: Xiqiao City is just ~, and Jiang Ziya is just a superficial husband.