An interjection used to express anger, annoyance, disgust, or dismay. The options are really limitless. Used in the same situations that "god damn it" would be found, but is more acceptable for the secular crowd. From the creationism episode of south park.
Greg: I can't believe it, the Bears actually are in the Superbowl this year.
Bitter Jets Fan: Science damn it!!
Bitter Jets Fan: Science damn it!!
by The Legendary Ironwood January 23, 2007
by United Atheist Alliance January 20, 2009