Short for 日本雨蛙 (Nihon amagaeru, “Japanese tree frog”). / (by extension) a hylid

(dialectal, chiefly Kansai, Chūgoku and Shikoku) to be noisy, to clown around, to cut up / (obsolete) to behave in a spoiled manner, to be puffed up

道の駅: roadside station

塩素: chlorine / 遠祖: remote ancestor

unhealthy but unescapable relationship

withered tree branch

Kyūjitai form of 弁える

検疫: quarantine

ドイツ連邦共和国: the Federal Republic of Germany (West Germany from 1949-1990, Germany as a whole after 1990)

(mahjong) a 役満 (yakuman, “limit”) hand consisting of four concealed triplets