Possibly explained as a punctuated Wolf Bite, the Dog Bark is a sweaty, chaffing ass crack's wake-up-fart. It's a well known fact that farting hurts, when you've got a Wolf Bite. Now you know that such a fart (in which every vibration and clap is felt like a slap on sunburn) is called a Dog Bark.
Damn, I knowed I shouldn'a ate them Crunch Wraps before I goed jogging. Them shits gave me the Dog Bark hard core, son.