[on the block] {adj. phr.} To be sold; for sale. * […]

[on the brain] {adj. phr.}, {slang} Filling your thoughts; too much […]

[on the cuff] {adj.} or {adv. phr.}, {informal} Agreeing to pay […]

[on the fence] {adj.} or {adv. phr.} Not able, or not […]

[on the fly(2)] {adj. phr.}, {informal} Busy; going somewhere in a […]

[on the go] {adj. phr.}, {informal} Active and busy. * /Successful […]

[on the house] {adj. phr.}, {informal} Paid for by the owner. […]

[on the job] {adj. phr.}, {informal} Working hard; not wasting time. […]

[on the lam] {adj.} or {adv. phr.}, {slang} Running away, especially […]

[on the level] {adj. phr.}, {informal} Honest and fair; telling the […]