Dominionist fuck wit describes newest fad in Christian "courtship" (read: human property exchange).
These types of beliefs are a lot wider spread than most people realize. Google "Dominionists", "Quiverfull", "Vision Forum", "Bill Gothard", and a plethora of others. Apparently, Sharia Law would look pretty good to these people as long as it's their holy book being imposed on everyone else.
You should also go read some of the stories on No Longer Quivering (where I first saw the blog inspiring link) for several examples of why this is a colossally bad idea.