1 c. graham cracker crumbs
1/4 c. melted butter
1 (14 oz.) can sweetened condensed milk
1/3 c. lemon juice
1 (12 oz.) Cool Whip
1 (7 oz.) bag coconut

Make crust for 9 inch square pan. Combine milk and lemon juice in large bowl. Fold in 3 1/2 cups Cool Whip and 1 1/2 cups coconut. Spread over crust. Sprinkle with remaining coconut. Chill 2 hours. Top with remaining Cool Whip before serving.