meaning “I’m very pleased.”

This is the perfect phrase to use when describing a great deal of pleasure about something, or displaying immense pride in one’s own efforts. For example, if you’re about to tuck into a delicious full English breakfast, then you could say that you’re feeling “chuffed to bits.” Or, perhaps you’ve just won over someone’s heart by introducing them to your favorite cider. Boom! You could now say that you’re “chuffed to bits with yourself.”