flyblow

/F L AY1 B L OW1/
noun
  1. 1

    The larva of the blowfly, especially when found on rotten meat.

verb
  1. 1

    To deposit eggs upon, as a blowfly does on meat; to cause to be maggoty.

  2. 2

    (by extension) To taint or contaminate.

Source: https://en.wiktionary.org/wiki/flyblow