Top definition
1. (n) An ass crack that is extremely large, usually present on overweight women.

2. (n) When a woman's ass crack is larger then one's arm.

Sometimes abbreviated to just fault line.
that chick has the biggest rectal fault line I have ever seen.
by Speedo_spink August 13, 2006
Get the mug
Get a rectal fault line mug for your brother-in-law Paul.

Available Domains :D

  • rectalfaultline.men
  • rectalfaultline.se
  • rectalfaultline.ninja
  • rectalfaultline.com
  • rectalfaultline.org
  • rectalfaultline.net