Contrary to sarcastic (usually called "ironic") humor and culture, post-sarcastic humor and culture genuinely shows admiration/appreciation for something, to the point where you are completely unashamed of liking something that others may consider embarrassing.

Example of sarcasm: wearing a Phil Collins t-shirt because you actually *don't* like him, and you're wearing it in a way that mocks him.

Example of post-sarcasm: genuinely enjoying Phil Collins enough that you would wear a Phil Collins t-shirt and sing his music in public.

to sport a boner, fly the sail at full mass, rock hard, etc.

Good natured humor of untruth that isn't ambiguous like normal sarcasm. Can be a statement that's obvious exaggeration or something too dumb or campy to need saying in the first place.