Shitposting

[Tariq Zaki]

Ironically posting something which to the average person looks just like a [cringy] or weird or stereotypical post conforming to a [norm], but is intended to mock, insult, or [amuse].

[Dave Paprocki]

The activity of posting deliberately provocative or off-topic comments on social media, typically in order to upset others or distract from the main conversation.