1. A region of Kansas
characterized by gently rolling hills, under which lie limestone and flint. Cattle, livestock, and not much else make up the population of the Flint Hills.
2. A term used to mean "nothing", due to the Flint Hills' barren status and the general boring feeling you get when driving I-35 or I-70 through them.
1. Yeah, we're driving through the Flint Hills right now. You can tell because there are no towns for 50 miles in any direction.
2. J: Hey, man, what's up?
T: Ah, Flint Hills, you?
J: Ditto. Flint Hills is happenin' around here.