1.
mouthful; with one's mouth full; filling the mouth
A quantity of food that fills the mouth, or the state of having one's mouth packed full.
口一杯に頬張る。
To stuff one's mouth full.
口一杯にケーキを入れて話そうとした。
He tried to talk with his mouth full of cake.
子供が口一杯にご飯を詰め込んで、お母さんに叱られた。
The child crammed rice into his mouth and was scolded by his mother.
口一杯 describes the state of having one's mouth completely full of food, or a quantity that fills the mouth. A compound of 口 (mouth) + 一杯 (full). Also written as 口いっぱい.
COMMON COLLOCATIONS:
- 口一杯に頬張る: to stuff one's mouth full
- 口一杯に詰め込む: to cram into one's mouth
- 口一杯の幸せ: a mouthful of happiness
USAGE:
Used both literally (eating with a very full mouth) and figuratively (口一杯に広がる味 — a flavor that fills the mouth). Often appears in food writing and descriptions of enthusiastic eating. Children stuffing their mouths are commonly described this way.