Paconym
It's when you brag about something so much that you use 'dutty,' 'stink,' or 'nasty' in front of it like it's the only way to talk.
That car? Nasty fast. It almost ran over my grandma.
This pizza is stink good. I'm gonna eat it and then take a nap.
He's got a dutty voice. He could sing the alphabet and it'd still be good.