A happy bunny American British noun phrase
Often used in the negative to refer to a person who is very unhappy, or irritable.
Used to refer to a person who is happy or satisfied with a situation
Look at his angry face, I'm sure he is not a happy bunny now.
You seem like a happy bunny today. Any good news?
James must not be a happy bunny after receiving the notice of resignation.
I know why David is not a happy bunny today. He's had a fight with his wife before coming to work.
To make someone feel more confident or happy, especially when they thought that they can't achieve what they want
Happy or cheerful; in a good mood
To smile broadly