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masc. proper name, from Old French Rogier, from Old High German Hrotger, literally "famous with the spear," from hruod- "fame, glory" + ger "spear" (see gar (n.)). As a generic name for "a person," attested from 1630s. Slang meaning "penis" was popular c.1650-c.1870; hence the slang verb sense of "to copulate with (a woman)," attested from 1711.
The use of the word in radio communication to mean "yes, I understand" is attested from 1941, from the U.S. military phonetic alphabet word for the letter -R-, in this case an abbreviation for "received." Said to have been used by the R.A.F. since 1938. The Jolly Roger pirate flag is first attested 1723, of unknown origin; jolly here has its otherwise obsolete Middle English sense "high-hearted, gallant." Roger de Coverley, once a favorite English country dance, is so called from 1685, in reference to Addison's character in the "Spectator." French roger-bontemps "jovial, carefree man," is attested there from 15c.
Yes; I understand; ok: Get your asses over there, Roger
[WWII armed forces; fr the US military phonetic alphabet word designating R for ''received,'' said also to have been used by the Royal Air Force by 1938]