When combined, 俗 (sú) + 套 (tào) literally means a “common set” or “conventional pattern.” It's a pattern of speech, storytelling, or behavior that has become so common and overused that it has lost all originality and impact.
In modern China, `俗套` is a heavily used term in the critique of media and art. With the explosion of domestic films, web series, and novels, audiences have become more sophisticated and discerning. On platforms like Douban (豆瓣), China's equivalent of IMDb, you'll frequently see reviewers complaining that a movie's plot is “太俗套了” (tài sútào le - too cliché). This reflects a growing cultural demand for originality and a rejection of lazy, formulaic storytelling. While the English word “cliché” is a near-perfect translation, there's a subtle distinction. “Cliché” is almost always a negative judgment. `俗套` is also predominantly negative, but it can sometimes be used more neutrally to simply mean “the conventional way of doing things,” even if that way is uninspired. A more useful comparison is with the Western media analysis term “trope.” A “trope” is a storytelling device or convention that isn't inherently good or bad (e.g., “the chosen one” trope). `俗套`, however, is what a trope becomes when it's used poorly, without creativity, and becomes predictable and boring. A Chinese speaker wouldn't compliment a film for its clever use of `俗套`; they would compliment it for avoiding `俗套`.
`俗套` is common in both spoken and written Chinese, especially in informal contexts.
The connotation is almost always negative, implying a lack of creativity, effort, or sincerity.