noun
sidelong glance; looking from the corner of one's eye
Refers to a sideways or furtive look, often with a nuance of suspicion or disdain.
彼は私を尻目にかけて通り過ぎた。
He passed by me with a sidelong glance.
noun
Used in the pattern ...を尻目に to mean 'in defiance of' or 'paying no heed to'. Often implies a deliberate snub.
彼は周囲の批判を尻目に、自分の計画を進めた。
He proceeded with his plan, ignoring the criticism around him.
noun
faceless ghost with an eye in its rump
A specific yōkai from Japanese folklore, also known as のっぺらぼう. Rare, domain-specific term.
See also: のっぺらぼう
尻目は、顔がなくお尻に目があるという妖怪だ。
Shirime is a yōkai said to have no face but an eye on its rear.
Compound of 尻 (shiri, 'buttocks, rear') and 目 (me, 'eye'). The literal meaning 'buttock eye' gives rise to the figurative sense of looking back or sideways, and the yōkai name.