Vomit!

Gird your loins, this one's a doozey. We're diving into vomit. We didn't have to try too hard to make this one gross.

Sources:

https://www.niddk.nih.gov/health-information/digestive-diseases/cyclic-vomiting-syndrome

https://www.webmd.com/digestive-disorders/digestive-diseases-nausea-vomiting#1

http://www.craveonline.com/site/1051139-10-amazing-facts-you-never-knew-you-wanted-to-know-about-vomitin

https://animals.howstuffworks.com/birds/vulture-vomit1.htm

https://www.quora.com/What-are-some-interesting-facts-about-hyenas-group-organization-and-behaviour

https://www.ranker.com/list/famous-people-who-died-of-inhalation-of-vomit/reference

http://www.decaturdaily.com/news/limestone_county/sheriff-vomit-left-behind-by-elkmont-burglar-leads-to-his/article_b1bbbc8d-866b-5f72-be3e-51b0c23a0868.html