We're the redneck gangsta funk

The story:

This was actually my best friend's mistake. The song came on in the car, and I was telling her how my mom actually thought that it went "It's a radical case of funk", which is pretty funny in itself. She told me what she always thought is was, and I started laughing so hard. Later, I told my family in a reseraunt, and they burst out laughing. She was all, "You told your whole family???!!"