look up any word, like ratchet:
1.A synonym for ass crack. Particularly when an individual reveals their ass crack often.

2. In insult ; used to insult someone who has done something inherently unintelligent.
1. Damn, I crashed my bike and got dirt down my butt crog.
2. Chris, stop being a butt crog.
by WindowLicker9000 January 29, 2010