This is based on opinion. Please don't list it on a work's trope example list.
Nightmare Fuel / The Jesus Lizard
The Jesus Lizard have lyrics that often graphically describe scenes of torture or depravity, though sometimes they'll cross over into Black Humor. "Puss" can be considered particularly creepy: the narrator has an abducted woman in his truck, whom he is Force Feeding alcohol ("Shove more bourbon down her mouth hole!") and whom he plans to rape in his basement ("Knock her down the stairwell and kick her, I think you can take her", "Cause she's the one who needs a nailing"). What adds to it is a somewhat disorienting use of Self-Backing Vocalist - there's a clean David Yow vocal in the right speaker and a distorted one on the left, and they're not always singing the same thing at the same time.
"Mailman" stands out for being a subtler depiction of dangerous psychopaths than is usual for the band: It's from the point of view of a woman who has been receiving creepy, obscene letters from a Stalker with a Crush, and David Yow sings the verses in an uncharacteristically hushed, intelligible manner, saving his trademark screaming for the chorus ("He can't see me! He cannot hear me! He can't smell or touch me!").