The term TACKLE SHOP BUY is a job description for someone who works in a tackle shop. This person would be responsible for purchasing the necessary items for the shop, such as rods and reels. Rods are three-letter items used in fishing, while reels are four-letter items used to store and retrieve fishing line. The tackle shop buyer would need to be knowledgeable about the different types of rods and reels available, and be able to make informed decisions when purchasing them.