Perpetrate BLUNDER is a term used to describe an action that has been done wrong or in a careless manner. It is usually used to refer to a mistake that has been made by someone, either intentionally or unintentionally. The term can also be used to describe a situation where someone has acted in a way that was not appropriate or wise. The crossword solutions for this term are 'COMMIT' which means to do something deliberately and with intent, and 'BLUNDER' which means to make a mistake or act carelessly.