Question: is miercoles a swear word?
Answer: Universally used by Spanish-speakers, “mierda”, like “shit” in English is a standard entry-level curse word. ... You can sub “miercoles” (literally, Wednesday) for “mierda” like we'd use “shoot” or “sugar” in English instead of “shit”. You can use “mierda” as a general exclamation, to describe a person or something bad.