ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
Borrowed from Michif rubaboo, from French roux (“thickener”) + Proto-Algonquian *aboo (“soup”). Compare Ojibwe naboo (“soup”), -aaboo (“liquid”).
rubaboo (uncountable)
rubaboo