chump
/tʃʌmp/noun
1
- informal a foolish person〈非正式〉傻瓜, 笨蛋。
2
- Brit. the thick end of something, especially a loin of lamb or mutton〈英〉粗厚的一端（尤指羊或羊羔腰臀部的肉）。
短语
off one's chump
- Brit. informal crazy〈英, 非正式〉发疯, 发狂：
I was beginning to think he'd gone off his chump.
我开始认为他已经发疯了。
词源
early 18th cent. （in the sense 'thick lump of wood'）： probably a blend of CHUNK1 and LUMP1 or STUMP.