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

(derogatory, ethnic slur) whitey (Caucasian)

sixty-nine (sex position)

(Buddhism) Siddhartha

(poetry) a 詞書 (kotobagaki, “explanatory note”) stating that the topic, theme, or occasion of a selected waka poem is unknown; also, the poem with the unknown topic, theme, or occasion

(history) Transylvania

Alternative form of トランシルヴァニア (Toranshiruvania, “Transylvania”)

loss of hearing (the ability to hear)

complete denial of knowing (an incident in question)