Chinese traitor; Chinese collaborator with the Japanese
Historical term used primarily during the Second Sino-Japanese War for Chinese who collaborated with the Japanese. Strongly pejorative.
During the war, those regarded as Chinese traitors were severely punished.
He went down in history as a Chinese collaborator.
Standard kanji form for this historical term.
From Chinese 漢奸 (hànjiān), literally 'Han traitor'. The term was adopted into Japanese with the same meaning.