Pretty good redneck joke

I am ne w here i hope somene hasn't already told this one

There was this one woman in a local restaurant that had started to choke a large piece of meat. As she started to gag on the meat a nearby waitress saw that woman and yelled "That woman is choking! Can anyone help her?" Just then two rednecks stood up and told the waitress they could. One of the rednecks dropped his pants and bent far over. They choking woman began to stare at the rednecks as the other stuck out his tongue and licked the other redneck’s ass. The choking woman was so disgusted that she immediately threw-up the meat and all she had eaten at the restaurant. As soon as they saw she was okay the rednecks sat down and resumed their lunch. The grateful woman came over to their table and asked why they had done such a repulsive act in public. They looked up from their meal and responded "You were choking so we had to perform the hind-lick maneuver."