by j-oshua October 15, 2009

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.
by KinkyCactus June 01, 2016

by tuna breath December 04, 2009

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.
by cheesefanatic July 02, 2017

by Fangsta December 15, 2003

by The Swanö Master March 16, 2025
