show one's true colors
Word Rarity
Uncommon
Frequency: Zipf frequency 4.09 in modern English
26
Scrabble Score
18
Letters
3
Syllables
11
Unique Chars
Meaning
verb
To reveal how one really is, as opposed to how one has been portrayed or after having been deceptively and deliberately misleading.
Informal
Etymology
Nautical origin. The word colors (or colours) refers to the flag or ensign which every ship is obliged to fly at sea. It was once a common deception of pirates to “sail under false colours” and fly a friendly flag in order to get within close range of potential targets (other ships) without exciting suspicion. Only when the pirate ship reached close quarters would it unfurl its true colours.