one of these days
Also, one day; some day. On some day in the future, as in One of these days I'm going to clean out my desk, or One day you'll see what it's like to have your child insult you, or They hoped to buy a brand-new car some day. [Mid-1500s] Also see one of those days.
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a gadget; dingus; thingumbob. |
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