A dong sack to me is unblocked, the blocker falls over or a coverage sack. Basically, it's a sack any average high school athlete(that includes golfers) could make. These are really the only way Dupree gets a sack. When Dupree does get a "sack" the Dupree Choir Boys jump up and down claiming he is the next LT. They will have to wait about 18 quarters to jump up and down again.