Juice that turns the user onto the yeehaw version of themselves and a strong urge to fuck they're siblings
As billy took a sip of his apple juice that was conveniently labled, he noticed there was anouther lable underneath. But it was too late. As he looked at the lable that said yee yee juice, he could feel his clothes changing to his hillbilly version of himself as he looked at his sister and realized that she didn't look to bad. And on that day, Billy Bob Joe was born.
A redneck with the IQ of a dead tomato plant, a mullet, a lifted Super Duty with disgusting oversized rims, and blasting the worst rap music in existence on a shitty sound system, while on the same note being completely racist, and will definitely cheat on his girlfriend.
Basically every guy in Polk County with a lifted truck is a Yee-Yee FuckBoi