The term "卢瑟" is a phonetic loanword formed by transliterating the English word "loser," using the characters 卢 (lú) and 瑟 (sè) to approximate its sound. It does not derive meaning from the original semantics of the Chinese characters (where 卢 can be a surname and 瑟 a type of ancient zither); instead, it is a direct, sound-based import of a foreign concept. This formation is a common method in modern Chinese, especially within internet slang, to adopt and localize foreign expressions by matching syllables with existing Chinese characters that carry little to no relevant semantic baggage for the new term.