expression, godan verb (-mu)
hold in one's mouth
Describes putting something into the mouth and holding it there, typically without chewing or swallowing yet. Often used for tasting, softening, or before swallowing.
薬を口に含んで、水で飲み込んだ。
I held the medicine in my mouth and swallowed it with water.
彼はワインを口に含み、味を確
He held the wine in his mouth and checked the taste.