When somebody has a "turtlehead" poke out of their anus and recesses back into the anus; causing the stool to milk the prostate in turn gives the male a boner. This ensuing boner is the "Dob Bole"
I had to shit so bad after that mexican guacamole that I got a Dob Bole and used it to fuck my sisters mom.
When a male has to take a shit really badly. That shit begins to turtle-head and recesses back into the butthole, milking the prostate and creating an ensuing boner. That boner is a Dob Bole.
Thus, a Dob Bole is a boner caused from fecal matter milking the prostate.
Note: No outside sources of feces can contribute to the Dob Bole, only your own.
Brian: Oh my god, I have to take a huge shit.
Nate: Dude, you smell like youre prairie dogging. And why do you have a boner?
Brian: Don't worry, thats just my Dob Bole. It'll go away after I move my bowels.