flood the zone

verb3

1. •
   (US) To fill a relevant region of the field of play.

   • McCarthy could spot his curveball for strikes, and flooded the zone with fastballs and cutters. — 2017
2. •
   To provide or supply a very large quantity (of something).

   • While Washington should flood the zone with research funding, it should refrain from trying to pick a winner. — 2008
3. •
   To inundate something or someone (especially an information space and the people using it), especially with undesirable things (such as disinformation or noise).

   • They're not trying to keep you well informed, nor to balance both sides — they're flooding the zone.