训骂 is a compound verb meaning 'to reprimand sternly' or 'to scold harshly', combining 训 (xùn, 'to instruct, admonish') and 骂 (mà, 'to curse, insult'). While 训 alone suggests formal, corrective instruction — often with authority and purpose — adding 骂 intensifies the tone, introducing anger, contempt, or public humiliation. The word implies not just correction but emotional force: raised voice, sharp words, and a power imbalance (e.g., superior to subordinate, parent to child).

训骂 is used in contexts where discipline crosses into verbal aggression — it’s stronger than 责备 (reproach) or 批评 (criticize), and more personal and heated than 教训 (to teach a lesson, which may include physical consequences). It frequently appears in narratives describing conflict, workplace tension, or family arguments, and carries a negative connotation: the speaker disapproves of the harshness or sees it as counterproductive.