👉 Definition: "Fii12 is a word that refers to a super-sized, super-annoying person who annoys everyone with their loud, rude, and constantly nagging behavior. Fii12 is so annoying that no one wants to be around them anymore." Example sentence: "I'm really getting fed up with the way fii12 keeps telling me what to do all day long. I just want some actual work done, not constant yelling at me for nothing."