Bots and Congested

(n.pl.) The larvae of several species of botfly, especially those larvae which infest the stomach, throat or intestines of the horse, and are supposed to be the cause of various ailments.

verb

• Become or cause to become obstructed.
  • usage: "The leaves clog our drains in the Fall"; "The water pipe is backed up"
  • synonyms: clog, choke off, clog up, back up, congest, choke, foul

adjective

• Overfull as with blood.
  • synonyms: engorged

• (a.) Crowded together.
• (a.) Containing an unnatural accumulation of blood; hyperaemic; -- said of any part of the body.