bottom feeder

noun2

1. •
   A fish or other aquatic creature that feeds off the bottom of its habitat; a flatfish.
2. •
   (disapproving, figurative) A person who operates amidst or thrives on the unwholesome things in a society; one who takes advantage of the misfortune of others.

   • [Hakeem] Jeffries hailed the Obamas as “brilliant, compassionate and patriotic Americans” and denounced Trump as “a vile, unhinged and malignant bottom feeder”. — 2026