In non-offensive English this translates to:
Descendant or product due to be punished by a supernatural power and sired by lewd women.
GodDamnedSons of Bitches from Webster 1913 yields:
God (n): 1. A being conceived of as possessing supernatural power, and to be propitiated by sacrifice, worship, etc.; a divinity; a deity; an object of worship; an idol. 2. The Supreme Being; the eternal and infinite Spirit, the Creator, and the Sovereign of the universe; Jehovah. 3. A person or thing deified and honored as the chief good; an object of supreme regard. 4. Figuratively applied to one who wields great or despotic power.
Damned (a): 1. Sentenced to punishment in a future state, condemned; consigned to perdition. 2. Hateful; detestable, abominable.
Sons (n): 1. A male child; the male issue, or offspring, of a parent, father or mother. 2. A male descendant, however distant; hence, in the plural, descendants in general. 3. Any young male person spoken of as a child; an adopted male child; a pupil, ward, or any other male dependent. 4. A native or inhabitant of some specified place. 5. The produce of anything.
Bitches/Bitches (n): 1. The female of the canine kind, as of the dog, wolf, and fox. 2. An opprobrious name for a woman, especially a lewd woman. 3. As slang bitches is a misogynistic term applied to a group of women.
(Side Note on Usage: Phrase oft uttered by a friend of mine 'Pops' on the USS Vandegrift (FFG-48) while on my first detachment to Japan. This was usually applied not only to people, but to pieces of errant equipment, situations and on more than one occasion as a response to the content of an alcoholic beverage in Korea.)
(Perhaps the most amusing time that this was uttered was in late 1998 when the boat would not come out of reverse. We were supposed to have pulled out of Yokosuka harbor and started on our merry way to Korea (we never really went anywhere else for six months,) however after two hours of sitting in the bay nothing happened. The boat would shudder for a few minutes and then drift backwards another fifty feet or so. After about two hours the tugs came over and pulled us back along pier side allowing the vast majority of the crew to go on liberty. As I am walking downstairs from the helo tower to find Pop's running up the passageway with a large grease streak across his forehead, a bag of tools, and repeatedly yelling "god damned sons of bitches.")
(This was a correct usage of the phrase despite the fact that in this case the son of a bitch in question was a malfunctioning screw pitch controller. The definition of 'son' clearly allows for this given that the USS Vandegrift (or can-adrift as locally addressed,) was a son of Ingall's Shipbuilding.)