The term 'Big Bargain' is a combination of two words, 'STEAL' and 'DEAL'. The term 'STEAL' is a 5-letter word meaning to take something without permission or legal right. The term 'DEAL' is a 4-letter word meaning an agreement between two or more parties, usually involving the exchange of goods or services. Together, these two words form the phrase 'Big Bargain', which is used to describe a situation in which someone is able to get something of value at a much lower price than it is normally worth.