Verb manducate has 1 sense
  1. chew, masticate, manducate, jaw - chew (food); "He jawed his bubble gum"; "Chew your food and don't swallow it!"; "The cows were masticating the grass"
    --1 is one way to grate, grind
    Sample sentences:
    Somebody ----s
    Somebody ----s something
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