Short for 親不知歯 (oyashirazu-ba, literally “parents not-knowing tooth”). a wisdom tooth (from the likelihood that the wisdom teeth do not erupt until after no longer in daily contact with one's parents, due to moving or death)

A cliff-lined coast in Itoigawa, Niigata Prefecture, Japan / A cliff-lined coast in Shizuoka, Shizuoka Prefecture, Japan

a foster parent, an adoptive parent / a proxy for one's parents / (biology) host of a brood parasite

(oceanography) Oyashio Current

killing of parent(s)

the home of one's parents

Alternative form of ゴーヤー

(Internet slang) when a child is born, they cannot choose a parent

synonym of 親字 (oyaji, “Han character dictionary headword”) / synonym of 大文字 (ōmoji, “a capital letter”) / synonym of 頭文字 (kashiramoji, “initial letter”)

(Internet slang) toxic parent