Значение идиомы sail under false colors

[sail under false colors] {v. phr.} 1. To sail a ship, oftenpirate, under the flag of another country.

The pirate ship flew theAmerican flag until it got near, then raised the black flag.

1. Topretend to be what you are not; masquerade.

The garage hired Jonesas a mechanic, but fired him when they found he was sailing underfalse colors.

They found out that Smith was an escaped convict whohad been sailing under false colors as a lawyer.