A combination of the words thin and inspiration, a thinspiration is something, usually an image or a person, that portrays an unhealthily skinny body. It serves as a trigger for those suffering from anorexia or bulimia, and is a large part of pro-ana and pro-bul culture.
Thinspiration and other pro-eating disorder media, (
like most awful things), is largely present on social media sites
like Tumblr.