The term 'Weedy Annual Grass' refers to a type of grass that is considered a weed because it grows quickly and spreads rapidly. TARE is a four-letter word that is used to describe this type of grass, which is known for its ability to outcompete other plants in an area. It is an annual plant, meaning it completes its life cycle within one year. Weedy Annual Grass is often seen as a nuisance because it can quickly take over an area, making it difficult to control.