sail under false colors
To behave deceptively; the “colors” of a ship are its identifying flags: “It turned out that the door-to-door sales rep was sailing under false colors and was actually a swindler.”
Words nearby sail under false colors
sail,
sail close to the wind,
sail into,
sail plan,
sail through,
sail under false colors,
sail-over,
sailboard,
sailboarding,
sailboat,
sailcloth
Idioms and Phrases with sail under false colors
sail under false colors
see under false colors.