[rest on one's oars] {v. phr.} To stop trying; stop working […]

[rest room] {n.} A room or series of rooms in a […]

[retreat] See: [BEAT A RETREAT].

[return] See: [IN RETURN].

[return the compliment] {v. phr.} To say or do the same […]

[rev up] {v. phr.}, {informal}, {slang} 1. To press down sharply […]

[reverse] See: [DOUBLE REVERSE], [IN REVERSE].

[rgr] "Roger" aka "affirmative" or "10-4", radio talk; "Roger that", meaning […]

[rhyme or reason] {n. phr.} A good plan or reason; a […]

[rib] See: [STICK TO ONE'S RIBS] or [STICK TO THE RIBS].