Laiha internet — hatudu buat ne'ebé rai ona / 오프라인 · 저장된 내용
Lian∞KO-TT

올백百 (일백(一百) 백)

olbaek

ENgetting a perfect score on a series of tests (e.g. in one's midterms or finals)

명사

올백을 맞다/받다 to receive a perfect score on all of one's tests