[off the beaten road] {adj. phr.} See: [off the beaten track]

[off the record] (2) {adj. phr.} Not to be published or […]

[off the top of one's head] {adv.} or {adj. phr.}, {informal} […]

[off the wagon] {adj. phr.}, {slang} No longer refusing to drink […]

[off the wall] {adj. phr.} Strange; out of the ordinary; stupid. […]

[off-again, on-again] or [on-again, off-again] {adj. phr.}, {informal} Not settled; changeable; […]

[old as the hills] {adj. phr.} Very old; ancient. * /"Why […]

[on board] (2) {adv.} or {adj. phr.} On a ship. * […]

[on call] {adj. phr.} 1. Having to be paid on demand. […]

[on cloud nine] {adj. phr.}, {slang} Too happy to think of […]