grub - definition and synonyms

verb [intransitive/transitive] 

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present tense
present participlegrubbing
past tensegrubbed
past participlegrubbed
  1. to try to find something by moving things around somewhere, especially somewhere that is dirty or difficult to reach
    grub around/about:

    He was grubbing around at the back of the sofa trying to find loose change.

phrasal verbs