内弁慶
う
ち
べ
ん
け
い
Meanings
1
lion at home, mouse abroad
Describes a person who is domineering or boastful at home but timid and reserved outside. Often used critically or humorously.
He's a lion at home and a mouse abroad: bossy at home but meek outside.
My child is a home tyrant; at school they don't talk at all.