吃瘪

Meaning

Refers to the American Thompson submachine gun. It has strong firepower and makes a "da-da-da" sound like a typewriter, making it a favorite weapon of gangsters. Combined with Chicago's powerful mafia and the typewriter-like sound, it's called "Chicago Typewriter." There's also a Korean drama of the same name starring Yoo Ah-in and Im Soo-jung.