HYOKKU-RI ひょっくり
Meanings
An unexpected situation (a sudden encounter or thought).
Examples
・I was struggling with a math problem, and the answer suddenly occurred to me.
数学の問題と格闘していたら、ひょっくり答えがひらめいた。
Dogmatic Opinion
An old expression that is almost never used (around Meiji era?).
However, even a first-time visitor can feel the sense of “sudden appearance,” as if a combination of the words “Hyokkori” and “Mukkuri”.