A fork of Rural Dictionary
9 toes down is when your commitment is at a 100% and confirmed, but if you happen to flake at last minute you cannot get mad at the person who gave you the 9 toes down.
Chris: Hey Ronald McMoney? McMoney: sup? Chris: you swear you showin' to my party this saturday got a lot of babes coming. McMoney: yeah bro! I'm 9 toes down.