くちがかるい
口が軽い
having a loose tongue; being talkative; speaking without thinking; being unable to keep a secret
N3Expression
Expression, I-adjective
having a loose tongue•being talkative•speaking without thinking•being unable to keep a secret
Example Sentences
彼は口が軽い。
He has a big mouth.
彼女は口が軽い。
She is a chatterbox.
あいつは口が軽いからこのことは言わない方がいい。
Don't tell him. He's got a loose tongue.