chumpPronunciation: /tʃʌmp/Translate chump | into Italian Definition of chump noun 1 informal a foolish or easily deceived person:I was left feeling a bit of a chump 2British the thick end of something, especially a loin of lamb or mutton. Phrases off one's chump British informal mad: I was beginning to think he’d gone off his chumpOrigin: early 18th century (in the sense 'thick lump of wood'): probably a blend of chunk1 and lump1 or stumpchump in other Oxford dictionaries Definition of chump in the US English dictionary