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waste (one's) breath
To talk of, discuss, or say things that are likely to be ignored or are in vain. Don't bother trying to change my mind about this, you're wasting your breath! It looks like I wasted my breath trying to pitch my idea to the board of directors.
waste no time (in) (doing something)
To act or do something immediately or as expediently as possible. Wow, Sarah wasted no time finding a new boyfriend after she and Rob split up. We have to have the application in by tomorrow morning, so we must waste no time in getting everyone's signature that we need.
waste on (someone or something)
To expend something on a person or thing that will not appreciate or properly utilize it. A noun or pronoun can be used between "waste" and "on." Her talent in art is wasted on me—I have no eye for design.
1. To dwindle toward a state of nothingness or complete decrepitude; to wither away. He didn't want them to see him wasting away from the cancer. The old industrial site just sits out there wasting away, unable to be rezoned due to contamination.
2. To squander something. In this usage, a noun or pronoun can be used between "waste" and "away." I feel like we've been wasting away every weekend watching TV. Let's try to get out of the house tomorrow. The old fool wasted his fortune away on trips to the casino.
to wither or dwindle away. Our money just seemed to waste away. As she grew older, she just sort of wasted away.
waste something away
to use something up wastefully; to dissipate something. He wasted all his money away and had to live in poverty. They wasted away everything and regretted it later.
Lose energy and vigor, become enfeebled and weak, as in She was wasting away before our eyes. [Late 1300s]
1. To lose energy, strength, weight, or vigor; become weak or enfeebled: The patient wasted away from cancer.
2. To spend some time idly or wastefully: They are wasting their lives away playing video games. The idle rich waste away their days.
1. mod. dead; killed. That’s silly. We all end up wasted one way or another.
2. mod. alcohol or drug intoxicated. I’ve never seen a bartender get wasted before.
3. mod. exhausted. I worked two shifts, and I’m totally wasted.