For the context: it's related to otokonoko (jap. 男の娘) trope, where a male has a culturally feminine gender expression (although the "reverse trap" also applies)

For the context: it's related to otokonoko (jap. 男の娘) trope, where a male has a culturally feminine gender expression (although the "reverse trap" also applies); notable example from modern media is Astolfo from Fate franchise. At the time popular reactionary meme to this was famous quote "It's a trap!" by Admiral Ackbar from Star Wars, thus through the evolution of the meme, at some point, in western anime communities "otokonoko" got aliased with "trap" (in fact, it was dominant word). Now, some people on Reddit lacking the above context got it all wrong and thought it was pejorative about transgender people and started a fight with argumentation i.a. that the genesis of the term is from some defense speech by murderer. I admit using a hyperbole, because I don't believe that example actually got used anywhere outside that pitiful Reddit "battle", but accusations of being thransphobe do happen (the same broken logic as with Pepe = nazi).