[on the outs] {adj. phr.}, {informal} Not friendly; having a quarrel. […]

[on the piss] {adj.} Getting drunk, drinking alcohol.

[on the point of] {prep.} Ready to begin; very near to. […]

[on the Q.T.] {adv. phr.}, {informal} Secretly; without anyone's knowing. * […]

[on the road] {adv.} or {adj. phr.} 1. Traveling; moving from […]

[on the rocks] {adj. phr.} 1. {informal} Wrecked or ruined. * […]

[on the ropes] {adv.} or {adj. phr.} 1. Against the ropes […]

[on the run] {adv.} or {adj. phr.} 1. In a hurry; […]

[on the safe side] {adv. phr.} Provided for against a possible […]

[on the shelf] {adv.} or {adj. phr.}, {informal} Laid aside; not […]