1. Slang for 'alright then', probably popularized by the movie SlingBlade
2. Term of acceptance in response to an offer or statement
(may be spelled with any number of 'i's, as in "aiight den" or "aiiight den")
1. 'Would you like some french fries?'
Aight den, reckon I would... I like french-fried 'taters & mustard, mmm-hmmm"
2. 'Wanna go to the store with me?'