Pendulum - Buri-kko

Japanese: 振子 - ぶりっこ

〘 noun 〙 A person who behaves like a cute and good girl. Especially used for young women. A word that became popular around 1980. ※Ningen Dobutsuen (1981) by Azusa Nakajima, page 71 "The reason I don't like Hamatora no matter what is because of his 'cute and flirty look' and 'no big deal look'."

furi-ko [pendulum]

〘noun〙 An object that oscillates at a fixed period around a fixed point or axis. Examples include simple pendulums, solid pendulums, and conical pendulums. Shinshi. [Physics Academic Terms Japanese-English-French-German Bilingual Dictionary (1888)] *Koufu (1908) by Natsume Soseki "Like the pendulum of a grandfather clock"

Shin-shi [Pendulum]

〘Noun〙① = Furiko (pendulum) ※Kirokugyo (1905)〈Natsume Soseki〉 2 "The sound of the shuttle leaking through the window is like an endless pendulum."② Children who accompany those who exorcise demons on Setsubun. → Children. [Tokyo Annual Events (1911)]

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙いかにもかわいくていい子のようにふるまう人。特に、若い女性にいう。昭和五五年（一九八〇）頃から流行した語。※にんげん動物園（1981）〈中島梓〉七一「私がハマトラを何としても気にくわないのは、それが『かわい子ぶりっこルック』『どうってことないルック』だからで」