1 1/2 c. mayonnaise
1/3 c. lemon juice
1/4 c. sugar
1/2 c. sour cream
1 lg. red onion, thinly sliced
2 tbsp. dry dill
1/4 tsp. salt
2 lbs. cooked med. shrimp

Combine all ingredients. Cover and chill overnight. Stir and serve with toothpicks.