fall off a cliff

== English == === Verb === fall off a cliff (third-person singular simple present falls off a cliff, present participle falling off a cliff, simple past fell off a cliff, past participle fallen off a cliff) (intransitive) To suddenly decrease in quantity; to become less popular or successful. ==== Translations ==== === See also === fall off the cliff === Further reading === “fall off a cliff”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.