I listened to a few fucked up bands when I was a kid, but one song really struck me. I loved hardcore/punk/funk/metal, so I was into Suicidal Tendencies and Infectious Grooves. Dare say Infectious was probably my favorite band of all time. But the song that, well "fucked me up" is a bit too strong because I was able to laugh about it after a while, and it took my brother pointing it out for me to even realize how sick it was, but it was Suicidal's "I Saw Your Mommy"
That video has the lyrics in the description in case you aren't keen on hardcore. I just loved it though. I only say it "fraked me up" because I was probably a little too young to be listening to it, but not that easily impressionable however much I loved Suicidal.
I also listened to Body Count, Ice-T had some crazy things to rap about. Although I'd listened to a bunch of gangsta rap, it was hard to tell how badly it was exaggerated, Ice-T tho was so hilarious and over the top I'd love listening to it as a kid, thinking I was such a rebel. My parents would've strangled me for real.