Fair warning... this is going to be one long-ass page!
Also note that both the words of the ass-compound have a secondary stress, and the primary stress is on the noun that follows: an ùgly-àss hóuse. This is already emphatic enough, but if you want to be really emphatic, replace a(n) with one: That is one ugly-ass house!
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*An indefinite noun is any of the following:Nicky: Sally, you're gonna absolutely love camping!
Alex: Camping is the shit!
Natasha: Language!
Sally: What if we see a snake?
Alex: Then pick up a big-ass stick and go to town!
Natasha: Young man, I'm not going to tell you again about your language!
Dougie: Hey, mom says we're going to Aunt Connie's for dinner and a movie tonight, so get dressed.
Christian: Ugh! Just shoot me!
Dougie: I thought you liked Aunt Connie.
Christian: I love her, but if I have to sit through one more boring-ass movie and eat one more salty-ass vegan dinner at her place, I'm gonna slit my wrists!
«This is how I look when I'm having a reeeeally boring conversation on the phone»
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*A definite noun is any of the following:Andy: Dude, who wrote you that long-ass message?!
Christian: Ugh... I broke up with Natalie last night. This is the fifth one she's sent today! I almost want to get back together so she'll stop texting me!
In this meme, the bird on the left is extremely stupid... so stupid, in fact, that he doesn't know what a star is, so he calls it that weird-ass pointy thing. In other words «that reeeally strange thing with all those pointy parts sticking out of it»😂
To give you another example, let's say your brother's a multimillionaire. You go out to lunch together and you have a glass of wine, but he's not drinking, so he orders water. When the bill comes, he freaks out because they charged him $7 for a bottle of water. He even calls the manager over to complain about the charge. You say:
Are you serious?! A rich-ass man complaining about seven bucks?!
In other words, «Let me remind you: you're rich, for God's sake!».
Similarly, in the snippet below, Nina very authoritatively reminds her brother that he's a married man and should behave like one.
Nina: Uh, what are you doing here?
Doug: Uh, what does it look like I'm doing — having a drink. Is that against the law?
Nina: I just don't think it's right for you, a married-ass man, to be sitting alone, in a nightclub, on the weekend, with a wife and kids at home.
Here's another meme based on a facial expression. Here, the subject has a confounded look on his face because he thought that as a grown man (for God's sake!), he knew what he was talking about or was making the right decision, but his mother turned out to be right... yet again!😅
Andy: Why doesn't she just call you instead of sending you those War-and-Peace-ass texts?
Christian: Please! That's all I need! I'd be on the phone all day. I need to go to work.
Nicky: Oh wow, where’s all your goth furniture?! Your vampire art! The gargoyle!!!
Erik: My girlfriend just moved in and replaced all my stuff with her Friends-ass furniture! I thought I had walked into the wrong house. I’m literally freaking out right now!
In closing, it's important to note that American English has set nouns that contain the element ass that have nothing to do with the forms above. For instance, the noun lard-ass is used as a derogatory name for someone who's fat and it literally means that they have lard (pig fat) in their behind. We also have the noun kiss-ass for someone who's constantly kissing people's ass in the sense of bending over backwards to please people in authority.
We also commonly use jackass, dumbass, and badass, which are written as one word and refer to people (although jackass is also another word for donkey). They also have nothing to do with the nuances described on this page.