Definition of dragon lady in US English:

dragon lady

noun

US
informal, derogatory
  • A domineering, powerful, or belligerent woman; (occasionally) specifically one of south-east Asian origin.

Origin

1940s. From dragon and lady, after Dragon Lady, the name of a villainous female character of south-east Asian appearance in the comic strip ‘Terry and the Pirates’, drawn by the American cartoonist Milton Caniff.

Pronunciation

dragon lady

/ˈdraɡ(ə)n ˌleɪdi/