The term "Tot" is an abbreviation for "Total", and refers to a complete or whole quantity. It can be used in various contexts, such as measuring alcoholic drinks (e.g., a shot glass filled up to the rim would contain one tot of liquid), counting objects (e.g., there are three books on the shelf), or expressing an amount of money (e.g., I spent five hundred dollars in total). The term is often used when referring to small children, particularly those under the age of two, as they require constant supervision and care.