old yukkuri
Yukkuris nearing the end of their lifespan. Undergo changes in appearance similar to old humans, gray hair and wrinkles.
Extremely rare outside of domesticated yukkuris (such as pet yukkuris or compost yukkuris) due to yukkuris being very prone to death by unnatural causes. Shitheads in particular often get themselves killed so these old yukkuris are generally niceheads only.