Add the cheese dip, cream cheese, pimiento (save the juice) and luncheon meat to a blender or food processor. Blend until everything is mixed and as smooth as you would like it. Add some of the pimiento brine to thin it out to a spreadable consistency. Spread 2 tablespoons on a slice of bread. Top with another slice and trim crust from bread using a sawing motion. Cut sandwiches diagonally to form triangles using a sawing motion. Wipe knife clean in between slices.