noun
puckered-up mouth; button of a mouth
Describes a small, round, pursed mouth, often used for cute or delicate expressions, or when drinking or eating daintily.
彼女はおちょぼ口でストローを吸った。
She sipped through the straw with her lips pursed.
赤ちゃんがおちょぼ口をして眠っている。
The baby is sleeping with its mouth puckered up.