show in true colours



show somebody in their true colours

  (British & Australian) also show somebody in their true colors (American & Australian)
to show what someone's real character is, especially when it is unpleasant By showing the terrorists in their true colours, the government hopes to undermine public support for them.
See also: colour, show, true

Common Names:

NameGenderPronouncedUsage
Giovanna[dʒɔ:'va:nna:]
VÁClav-Czech, Slovak
Celsus-Ancient Roman
GlenGLENScottish, English
Brunhildebroon-HIL-də (German)German, Ancient Germanic
Akosua-Western African, Akan