Over the years we English-speakers have had many ways to say that something is just fine. Here are a few of them.
1702 - tip-top - most excellent, as what is most excellent is top of the heap.
1811 - up to snuff - This idiom showed up some 160 years after the practice of inhaling powdered tobacco into the nose became all the rage in England. Its original meaning was sharp, wide awake, not easy to deceive, & most likely reflects the somewhat caffeine-like effects of snorting powdered tobacco.
1848 - top-notch - Etymologists assume this idiom may come from a game of some sort, but no one is certain. Like tip-top, top-notch denotes something that is most excellent.
1866 - hunky-dory - satisfactory, or just fine. Nobody’s certain of this idiom’s source. One school of etymologists thinks it may have come from the earlier word hunkey - also meaning satisfactory, which came from the word hunk, an inner-city New York slang term used to refer to home-base, a safe place during games like tag. Others suggest hunky-dory is a mispronunciation of Honcho dori, a street in Yokohoma, Japan, infamous for the sailorly diversions it offered. Both are intriguing & believable possibilities, but neither has been nailed down as fact.
1953 - peachy-keen, meaning most excellent. This figure of speech appears to have grown out of peachy, used to mean attractive since 1900, & keen, which in 1900 became a term of approval among the teenage population. Interestingly, keen is a word of many sometimes contradictory meanings: bold, brave, fearless, prudent, wise, able, eager, ardent, sharp, loud, shrill, biting, bitter, & cutting.
What other ways do you know of verbally approving of something? Please leave your examples in the comments section.