Joe Strummer works himself up to this in The Clash's "The Right Profile."
He said go out and get me my old movie stills
Go out and get me another roll of pills
There I go again shaking, but I ain't got the chills
Arrrghhhgorra buh bhuh do ARRRRGGGGHHHHNNNN!!!!
John Cale is fond of the trope. Take "Leaving It Up To You", which is a smooth (if slightly menacing) midtempo rock song up until the end of the second verse, and then it all starts to get... weird.
And it's sordid how life goes on when I could take you apart
And if you give me half a chance, I'd do it NOW!
...I'd do it NOW! RIGHT NOW, YA FASCIST!
I know we can all feel safe - like Sharon Tate!
Or we could give it all, we cou-gi-give-gi-giveitAAAAAAAALL!
Jim Morrison in "The End":
Father, I want to kill you... Mother, I want to AHHHRAARAAAGH!"
He says he wants to fuck her in the uncensored version.
Several of John Lennon's songs engage with Angrish and primal howling; particularly the tracks on Plastic Ono Band, released after he'd tried Primal Scream therapy, enter into this, particularly "Mother" ("Mama don't gooooOOOOOOOOOOWWWAAAAAAAAAAAAHH!!!!!"). "Cold Turkey" also degenerates into feverish sounding screams, reflective of someone with a nasty heroin addiction experiencing particularly bad withdrawal pangs — not coincidentally, Lennon wasgoing through a nasty heroin addiction...
Pretty Lush by Glassjaw ends the bridge with Daryl Palumbo yelling "You fnn...nng...nngah!"
Many heavy metal songs. Especially with a type 3 Metal Scream.
With Wayne Static of Static-X, it's a toss-up between this, or The Unintelligible. Check out "Tera-fied", "Otsego Amigo" or "Cannibal".
In the Danielson song "Pottymouth", rather than using actual profanities, the pottymouth's cursing is rendered as indeterminate muttering.
