Plunked down' means to put something down forcefully. The term PLUNKED DOWN can be summarized by the acronym SAT, which stands for 'slammed, attacked, thrown'. This term is used to describe the action of putting something down with a lot of force or energy. It is often used in reference to objects being placed on a surface with a loud noise or impact. In other words, it is the act of placing something down abruptly and with great force.