Sofa spuds refer to individuals who spend most of their time lounging on the couch, often while mindlessly watching television. However, there are a number of synonyms that can be used to describe this type of behavior. Couch potatoes, lazy bones, and slugabeds are all effective ways of capturing the same sentiment. Some might also use the term "armchair quarterback" to describe someone who spends a lot of time talking about sports without actually playing them. Ultimately, the phrase "sitting around doing nothing" can be used to describe any of these behaviors, regardless of the individual's preferred terminology.