The Bog is the area between the genitalia (usually male) and the asshole. This area is also known as the Taint but when it is particularly sweaty, slimy or not clean it is referred to as "the bog".
After having sloppy sex all night and then going for a jog. Kenny declared, "Man, my bog is sweaty."
Alan had a sweaty bog because he refused to shower for a week.
Another name for a gun dealer that is easy confused with a used car salesman or beached whale sweating in the summer sun. Often seen selling guns for far great than retail price all while sweating heavily.
Sweaty Ben breathes heavily as he moves from one end of the 5ft table displaying overpriced rifles to the other.