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
Angelle-English (Rare)
EsİN-Turkish
Ansobert-Ancient Germanic
VahİDe-Turkish
KatkaKAHT-kahCzech, Slovak
TruemanTROO-mənEnglish (Rare)