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blowhole  - definition and synonyms

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noun [countable] blowhole pronunciation in British English /ˈbləʊˌhəʊl/
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singularblowhole
pluralblowholes
  1. 1
    a hole in the top of the head of a sea animal such as a whale or dolphin, through which it breathes
  2. 2
    a hole in the surface of ice that sea animals such as whales and seals use to breathe through
  3. 3
    a hole in a tunnel through which gases can escape

bit rot

when electronic information is lost because the software or devices needed to read it are no longer available

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troll factory

a company that pays its employees to write online comments in favour or against somebody or something posing as ordinary Internet users

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