Barulho Porsche, Portuguese for Porsche noise, circulates on soundboards as a short car prank clip taken from a video of an owner revving a new exhaust. The joke relies on the exhaust note sounding almost human, like an exaggerated moan, which made it easy to share out of context. Portuguese speaking creators helped spread the clip, and it is now reused internationally under its English description as a moaning exhaust sound for memes, fake engine dubbing, and over the top car reveals.