A "Function Call" is a way to execute a specific block of code, known as a function, in programming. When a function is called, the program temporarily pauses its current task, runs the code inside the function, and then returns to where it left off. This allows for organized and reusable code, making it easier to manage complex tasks. Functions can take inputs, called arguments, which allow them to perform operations based on different data. After processing, a function can also return a value, which can be used later in the program. This structure helps streamline coding and enhances efficiency.