Plural of dink; light strikes or soft shots in sports, or small things; can also be slang for something insignificant.
From dink (small, or a light strike) + plural -s. Dink itself has obscure origins but became established in English by the 19th century.
In pickleball culture, 'dink wars' are now a thing—entire YouTube channels devoted to analyzing the micro-movements of perfect dink shots; it's transformed what was once a throwaway term into a sophisticated technical vocabulary.
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