don’t bite the hand that feeds you Don’t harm, insult, or undermine someone who supports you or provides you with benefits.
don’t count your chickens Warns against assuming a favorable outcome before it actually happens; don’t rely on something not yet certain.
don’t cry over spilled milk Don’t waste time being upset about something that has already happened and can’t be changed.
don’t give up the day job A humorous warning that someone isn’t good enough at a new activity to rely on it for a living; keep your regular job.
don’t judge a book by its cover Don’t form an opinion about someone or something based only on appearance; the reality may be different.
don’t look a gift horse in the mouth Don’t criticize or scrutinize a gift; accept it gratefully instead of finding faults.
don’t put all your eggs in one basket Don’t risk everything on a single plan, investment, or opportunity; spread risk across multiple options.
don’t put the cart before the horse Don’t do things in the wrong order; don’t act on later steps before the necessary earlier ones are done.
don’t put words in my mouth Don’t claim I said/thought something I didn’t; don’t misrepresent my meaning.
double-edged sword Something that has both advantages and disadvantages; a benefit that also carries risks or negative consequences.
down the hatch A toast said just before drinking, meaning “let’s drink it” or “drink it quickly,” often in a cheerful, informal way.
down to the wire At the very last moment before a deadline; with almost no time left, often creating pressure or suspense.
drag your feet To delay doing something on purpose; to act slowly or reluctantly to avoid a decision or action.
draw a blank To be unable to remember, think of, or find an answer or information, often suddenly or under pressure.
draw first blood To be the first to score, gain an advantage, or land the first successful attack or criticism in a conflict or competition.
draw the line To set a clear limit on what you will accept or allow; to refuse to go beyond a certain point.
drive a hard bargain To negotiate firmly and aggressively to get the best possible deal, often refusing to concede much.
drive someone up the wall To irritate or frustrate someone extremely; to make someone feel they can’t stand it anymore.
drop a hint To indirectly suggest or mention something so someone understands your intention without you saying it openly.
drop in the ocean A very small amount compared to what is needed or expected; something negligible in the larger context.
drop the ball To make a mistake by failing to do something important, especially through carelessness or inattention.
drown your sorrows To try to forget sadness or problems by drinking alcohol (or overindulging in something).
eager beaver A very enthusiastic, hard-working person who is keen to do tasks (sometimes seen as overzealous).
easy come, easy go Something gained easily (especially money) is often spent or lost just as easily, so don’t be too upset about it.
easy does it Proceed slowly and carefully; don’t rush or force things, especially in a delicate situation.
eat crow To admit you were wrong and accept humiliation or embarrassment, often after boasting or insisting you were right.
eat humble pie To admit you were wrong and accept humiliation or embarrassment, often after being overconfident or critical.
eat your words To admit you were wrong and take back what you said, often after events prove the opposite.
elephant in the room An obvious problem or sensitive issue that everyone is aware of but avoids discussing.
end of the road A point where progress is no longer possible, or when something is finished and cannot continue.
even the score To get back at someone or do as well as they did, so the advantage, debt, or situation between you becomes equal again.
every cloud has a silver lining Even in a bad situation, there is usually something good or hopeful to be found.
every dog has its day Everyone will have a moment of success, luck, or recognition eventually, even if they are overlooked now.
face the music To accept and deal with the unpleasant consequences of your actions or a difficult situation instead of avoiding them.
fall by the wayside To fail, be abandoned, or stop being pursued as time goes on (a plan, project, habit, etc.).
fall from grace To lose favor, respect, or a high position/status, often after a mistake, scandal, or wrongdoing.