alt text:
IMO the thymus is one of the coolest organs and we should really use it in metaphors more.
explanation: https://www.explainxkcd.com/wiki/index.php/2960:_Organ_Meanings
alt text:
IMO the thymus is one of the coolest organs and we should really use it in metaphors more.
explanation: https://www.explainxkcd.com/wiki/index.php/2960:_Organ_Meanings
An appendix of a book could be considered a metaphor for the organ
Other way around:
https://www.etymonline.com/word/appendix
Technically, the organ you’re thinking of is the vermiform appendix, which means “worm shaped.”
Evolved to obsolescence in humans ?