Subtweet
Writing a post that clearly refers to a specific person without naming or tagging them — an indirect jab. "Sub" as in subliminal: everyone in the know understands who it's about, but the target is never called out openly.
Mechanic: instead of replying to or tagging someone, you post a criticism/comment "into the air" ("some people should learn to…"). It avoids direct confrontation and the tag's notification, but still signals — often to an in-the-know audience that gets the reference. Socially loaded: it can be cowardly (striking without owning it), passive-aggressive, or a self-preserving strategy (avoiding drama/a quote-tweet dunk). Equivalents exist everywhere: "vaguebooking" on Facebook, vague Instagram stories. A classic part of social media's indirect conflict language. Distinct from a quote-tweet (open, tagged) by its anonymity. Related to ratio and screenshot culture.