Definition of slug

The word "slug" is derived from the Old English word *sloh, which meant "limp mass" or "soft, sluggish body." The precise origin of the word is unclear, but some linguists believe it may have been onomatopoeic, imitating the sluggish movements and slimy texture of the animal. In addition to its use to describe gastropod mollusks, the word "slug" has been applied to other slow-moving or squishy objects. For example, in the 14th century, the term "slovenly slug" was used to describe a lazy or sluggish person, and in the 16th century, "slug" was used to describe a piece of moldy bread or a lump of dough. Interestingly, the word "slob" has a similar etymology, as it also comes from Old English and means "sloppy, dirty person." In fact, some linguists believe that "slob" and "slug" may have shared a common origin, as both words describe things that are messy, unkempt, and somewhat repulsive. Today, the word "slug" continues to be associated with the slow-moving and slimy characteristics of the animal, as well as its drab and unassuming exterior. However, the lexical history of the word serves as a reminder that the boundaries between word meanings are not always clear-cut, and that language is shaped by the complex interplay of historical, cultural, and linguistic factors.