palooka
/pəˈluːkə/noun
1- US informal, dated an inferior or average prizefighter〈美, 非正式, 旧〉水平很差（或一般）的拳击手。
1.1
- N. Amer. a stupid, uncouth person; a lout〈北美〉笨手笨脚的人; 笨蛋。
词源
1920s: of unknown origin.