What the other dude said is what all non-country people think it is. To pretty much everyone whos country in any way, shape, or form, it more or less means a part of us that does...well, stuff that most people consider country, or old fashioned in some cases.

Anything from having a party by drinking beers out in a (corn)field with a bunch of trucks, to driving around on back roads with the windows down, to something as small as asking a girls dad if you can date her before you ask her out, that way he doesn't blast your ass with a shotgun when you bring her home.
My hillbilly bone is itchin today, I think I'm gonna head out to the creek tonight. Yall wanna come? Plenty of branches to hang clothes on, don't worry ;)
by GentlemanlyRedneck October 12, 2017
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An erection one gets while at a large family gathering from seeing close relatives.
Man I was suffering big time from Hillbilly Bone when my cousins went swimming at my family reunion.
by BobDole1234 July 28, 2010
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