Obstintificus
This word is like a never-ending pain in the butt, and people use it to say dumb stuff like hello or how are you, which is the worst.
Hey, wanna be obstintificus? I'm not even gonna ask how you're doing.
Obstintificus, my dear, because I’m too lazy to say anything else.
Obstintificus, sir, because I’m trying to sound fancy and it’s failing.