泡あわぶくあわぶくMeanings1nounbubble; foam; frothdated termDated term for bubbles or foam, especially from saliva. Modern Japanese more commonly uses 泡 (あわ) or 泡立つ (あわだつ).赤あかちゃんの口くち元もとに泡あわぶくが浮うかんでいた。