The ad attempts to distinguish between the superior sound quality of beyerdynamic's headphones and their competition's.
The ad suggests one might inaccurately hear something like "I wanna Thai gay motel!" instead of the correct lyrics "I'm on a highway to hell!" if consumers choose an inferior quality headphones.
The caption beneath the mistaken lyrics reads
Deine Anlage, which translates to "Your hi-fi system," while the caption beneath the correct lyrics reads
Unser Kopfhörer, meaning "Our Hi-Fi system."
The gay reference is not judgmental.