In a large bowl, combine cornmeal, flour, thyme, baking powder, salt, garlic pepper, baking soda, and cayenne pepper.
In a small bowl, combine eggs, buttermilk, and sour cream. Add to cornmeal mixture, stirring just until dry ingredients are moistened. Fold in onions, bacon, and crabmeat.
Dip a tablespoon into water, and then dip out a spoonful of the hushpuppy mixture. This will allow mixture to easily fall off the spoon. Drop into hot oil, and fry until golden brown. Drain on paper towels.