The Collaborative International Dictionary
Roger \Rog"er\, n. [From a proper name Roger.] A black flag with white skull and crossbones, formerly used by pirates; -- called also Jolly Roger and pirate flag.
WordNet
n. a black flag bearing a white skull and crossbones; indicates a pirate ship [syn: black flag, Jolly Roger]
Wikipedia
"Pirate Flag" is a song recorded by American country music artist Kenny Chesney. It was released in February 2013 as the first single from his album Life on a Rock. The song was written by Ross Copperman and David Lee Murphy.
Usage examples of "pirate flag".
Even from this great distance, the people on the captured caravel could see the pirate flag go down the mainmast, colors struck in surrender.
With the grimace, his black face and his angled skinny legs, he exactly resembled the skull-and-crossbones on a pirate flag or on the label of a bottle of poison.
But since entering our country, she is sailing under a pirate flag.
Yet he doesn't like it when Mama quotes Mark Twain, who has recently written that Old Glory should be changed to a pirate flag, with black stripes and each star a skull and crossbones.