grouch
US /ɡraʊtʃ/
UK /ɡraʊtʃ/

1.
투덜이, 불평꾼
a habitually irritable or complaining person
:
•
Don't be such a grouch, it's a beautiful day!
그렇게 투덜대지 마, 아름다운 날이잖아!
•
My grandpa is a bit of a grouch in the mornings.
우리 할아버지는 아침에 좀 투덜이셔.
투덜이, 불평꾼
a habitually irritable or complaining person