When you witness or do something that is Larry David funny. To be Larry David funny it has to be funnier than just funny, and after telling someone about it they laugh profusely as well.
Man 1: What's so funny?
Man 2: I slept at this random girls place last night and when I woke up hungover the next morning I couldn't remember what I did with my phone. After searching for it extensively we finally gave up and she said, "If I find it, I'll just give you a call." And yes, she was serious.
Man 1: Hahahaha that's hi-larry-ous!
Of or pertaining to the Hilary in your life. May indicate ownership or reference to an idiosyncrasy pertaining to the Hilary-person:
1. Indicating ownership:
Person 1: "Oh my gosh, that sweater is Hilaryous!"
Person 2: "Oh, okay, I was wondering to whom it belonged. Hilary must have left it here, the last time she visited."
2. Pertaining to idiosyncrasy of the Hilary-person:
Person 1: "You know that thing Hilary always does, when she leaves social gatherings without notifying her friends? She seems to catch a thrill from gaining MIA status; it happens nearly every weekend."
Person 2: "Oh yes, that thing. It's never funny but so Hilaryous all the same."