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hindsight is (always) 20/20
It is easier to clearly reevaluate past actions or decisions than when they are being made or done; things are clearer or more obvious when they are reflected upon. A reference to the visual acuity of normal eyesight (20/20 vision). I can see now that having my brother as my legal counsel was unwise, but I guess hindsight is always 20/20. A: "I can't believe I was ever interested in such a self-absorbed jerk." B: "Don't blame yourself. Hindsight is 20/20, after all."
talk twenty to the dozen
To talk (to someone) very rapidly, hurriedly, and/or energetically. My aunt can get talking twenty to the dozen if you get her on a topic she's passionate about.
A very brief nap or a short sleep. When you have a baby for the first time, you are suddenly forced to learn how to operate on only twenty winks at a time. I'm going to go grab a quick twenty winks before everyone starts arriving for the dinner party.
be (on) the wrong side of (an age)
To be older than a certain age. Why is she dressing like a teenager when she is clearly the wrong side of 40? I'm sore after every workout these days, so I'm definitely on the wrong side of 30!
be (on) the right side of (an age)
To be younger than a certain age. You can get away with dressing like a teenager when you're still on the right side of 30. I was never sore after working out when I was on the right side of 40!
the sunny side of (an age)
Just a little bit younger than a landmark age, such as 20, 30, 40, etc. The thriller centers on a young journalist on the sunny side of 30 discovering the treacherous world of politics in Washington, D.C. What would you know about a business like this? You're still on the sunny side of 20!
A term referring to the use of marijuana. It can also refer specifically to such use on the date April 20 (4/20) or the time 4:20. The origin of the term is debated. Whoa, look at all that smoke—there's some 420 action going on in here! Anybody got some weed so we can celebrate 4/20 the right way?
The ability to determine how some mistake or failure in the past could have been avoided. Often used ironically or sarcastically; sometimes stylized as "20/20 hindsight." I can see now that having my brother as my legal counsel was unwise, but I guess twenty-twenty hindsight isn't much use right now. A: "I can't believe I was ever interested in such a self-absorbed jerk." B: "Don't beat yourself about it. We all have 20/20 hindsight."
Knowledge of what one should have done, because it is easier to clearly reevaluate past actions or decisions than when they are being made or done. A reference to the visual acuity of normal eyesight (20/20 vision). With 20/20 hindsight, I can see now that having my brother as my legal counsel was unwise. A: "I can't believe I was ever interested in such a self-absorbed jerk." B: "Don't blame yourself. We all have 20/20 hindsight."
Knowledge after the fact, as in With twenty-twenty hindsight, I wouldn't have bought these tickets. This idiom uses twenty-twenty in the optometrist's sense, that is, "indicating normal vision," and hindsight in the sense of "looking back" or "reconsidering." [First half of 1900s]
twenty-twenty hindsightand 20/20 hindsight
n. an ability to figure out what one should have done after it is too late to do it. Everybody has twenty-twenty hindsight!