A creature from Japanese folklore. Usually translated as demon or ogre. They are easily identified by their horns, red or blue skin, and a tiger print loincloth. Their weapon of choice is the club, particularly the kanabou.
Typical examples are Lum, Gedomaru, Ibuki Suika and Hoshiguma Yuugi.
The following tags implicate this tag: red_oni and blue_oni (learn more).