missed spot (shaving); unshaven hairs
Refers to hairs or patches left behind after shaving, often used when checking one's face or body.
When I looked in the mirror, there was a missed spot on my chin.
Check again to see if there are any unshaven hairs.
Standard kanji spelling.
Mixed kana-kanji spelling, also seen.
Compound of 剃り (continuative form of 剃る 'to shave') + 残し (continuative form of 残す 'to leave behind').