Food nipple

The food nipple is an invention of the Covenant for feeding Unggoy.

Background
The Unggoy, having such a lowly place in Covenant society as cannon fodder and subservient thralls, lead an existence of servitude and feeding at these nipples is one of their very few real pleasures. Many Unggoy do not enjoy feeding off of food nipples: however, they seem to just put up with it because it is their main source of nutrition. They appear as a long tube with a nipple at one end to consume from. They contain a blue, bubbling paste that the Unggoy find unappetizing but nutritious. McKay describes the smell as "old socks wrapped in rotting cheese".

They are described as free standing food-dispensers, with long tubes and receptacles that end in a nipple that the Unggoy use to distribute the food into their gullet.

Trivia

 * The food nipple is mentioned in the games on multiple occasions:
 * The Thirsty Grunt in Halo: Combat Evolved says "Good thing the food nipple's waiting for me back at the star ship, 'cause man, have I worked up a big, Grunty, Thirst!"
 * In Halo 2 on the level The Oracle, after the Grunt says he has a bad feeling about something, another Grunt says: "You ALWAYS have bad feeling! You had bad feeling about morning food nipple!"
 * The Grunt who mentions Flipyap in Halo 3 also mentions that they "went to Nipple Academy" together.
 * Also, in Halo 3, if IWHBYD is turned on, a Grunt may say: "He flees! Thank the nipple...".

List of appearances

 * Halo: The Fall of Reach
 * Halo: Combat Evolved
 * Halo: The Flood
 * Halo: First Strike
 * Halo 2
 * Halo Graphic Novel
 * Halo: Ghosts of Onyx
 * Halo: Uprising
 * Halo 3
 * Halo: Contact Harvest
 * Halo: The Cole Protocol
 * Halo: Evolutions - Essential Tales of the Halo Universe
 * Halo: Combat Evolved Anniversary
 * Halo 2 Anniversary
 * Halo 5: Guardians