The 'Buenos Dias, Fuckboy' meme typically features a 3D-rendered character—most famously a skeleton or the character Emil from the video game NieR: Automata—striking an aggressive or dramatic pose. The phrase first gained traction on Tumblr around 2015 before evolving into a popular image macro used to 'raid' group chats or enter a digital conversation with high-octane irony. Its humor stems from the sharp contrast between the polite Spanish greeting 'Good morning' and the aggressive slang that follows. Today, it is a staple reaction image for sliding into DMs or interrupting serious online discussions with a sense of chaotic dominance.