lip bum

When someone doesn't know it's actually called lip balm, they call it lip bum. Don't ask me why they do it, they just do.

Billy: Why do you wear lip bum?
Mel: IT'S LIP BALM YOU IDIOT.

by cheesefanatic July 2, 2017

bum lips

Lips pursed in such a way that they resemble an anus.

"Don't kiss me with those silly bum lips, give me some tongue you penny-farthing driving fuckarse."

by j-oshua October 15, 2009

bum lips

The rim of your anus typically with a circumference 2πr, r being the radius of the ass pussy. This has an exponential growth whether you are excreting waste, or receiving sweet love which is proportionate to each persons bum cheek volume.

Jonathan dropped the soap and felt the exponential growth of his bum lips

by KinkyCactus June 1, 2016

Packie Bum Lip

Nicotine stains / Tar build up on the bottom lip.

Phillipe, you're getting a Packie Bum Lip from smoking too much.

by The Swanö Master March 16, 2025