Country Dictionary

1. An adjective used to show how you damn good you think something is.
2. The opposite of a bad ass; a non-violet, level-headed young person.
3. A particularly fine bottom.

1. "This is a good ass piece of cheese!"
2. "Look at that guy, studying when he could be could be doing semi-illegal things! Pah, what a good ass!"
3. "You see that girl? I think she has a really good ass!"

a term used much like bad ass but is used as to not create any confusion about the situation.
to clarify things

man that was a bad ass game of pool...
What man did you lose?
No man it was good i won...(Here would be a perfect situation to use good ass)

An ass that is not only visually appealing but is also soft to touch and very enjoyable

Freddy: wow Rasputin sure is thiq
Rob: yeah he really had a good ass

When you find a girl with a dam good looking ass.

Dude look she got a good ass.

A phrase David uses that has no numerical value, after several inquiries David will still not disclose how much "good ass money" actually is.

"Dude it doesn't matter dude, he's still gonna be making good ass money."

"What the hell is good ass money?"

"Yeah I'll finally be making that good ass money!"

A line from chappelle show. Arsenio Hall attends a cheese party and expressed his enjoyment of the cheese

Arsenio Hall: This is some good-ass cheese!

When something is so good that you just have to use some kind of stupid metaphor to describe it.

I'm making 700 bucks an hour. Damn. That is some good-ass cheese.