noun, noun or participle which takes 'suru'
upskirt glimpse; panty flash
Slang abbreviation of パンツをちらり (a quick peek of panties). Refers to a brief, often accidental, glimpse of a woman's underwear, typically upskirt.
風でスカートがめくれてパンチラが見えた。
The wind flipped her skirt and I caught a brief upskirt glimpse.
あのアイドルのパンチラ写真がネットに出回っている。
Upskirt photos of that idol are circulating online.