Top definition
The crevasse in the bum caused by a person pulling their pants up too high. This action often causes Cameltoe or Moose Nuckle in females.
That jogger we just passed was wearing analflage, yeah, by the look of her cameltoe, she must of had some serious bumsplit happening!
by Swanman July 20, 2014
Get the mug
Get a bumsplit mug for your mother-in-law Jovana.