Definition
The phrase 'and how' is an emphatic way of expressing agreement or affirmation. It intensifies a previous statement. Think of it as saying 'absolutely!' or 'you bet!' with extra enthusiasm. It indicates strong agreement and leaves no room for doubt. It's often used in informal conversation to add emphasis. For example, 'Was I nervous? And how!' It conveys a sense of shared understanding. It suggests an unquestionable truth.