Whacker Weed is a type of weed that is commonly found in gardens and lawns. It is a fast-growing, annual weed that can be difficult to control. The term 'whacker weed' is derived from the fact that it needs to be whacked or HOE-ed down in order to keep it under control. The crossword solutions for the term 'whacker weed' are HOE (3 letters) and HOER (4 letters). HOE is a tool used for gardening and farming, while HOER is a person who uses a HOE. Both terms refer to the act of controlling whacker weed by cutting it down.