Preheat your oven
grease a 9 x 13 baking pan with a nonstick cooking spray
In a large mixing bowl mix together your poundcake, eggs, milk, and butter and pour into your greased baking pan
Bake as directed on the box
Mix together your sweetened condensed milk, pineapple juice from your crushed pineapples, and cream of coconut
As soon as you take your cake out of the oven, use the bottom of a wooden spoon to poke several holes in the top
While your cake is still hot, pour your pineapple juice mixture evenly over the top
Spread your crushed pineapple over the top, cover, and set in the fridge for 6-8 hours
Spread your whipped cream over your cake, top off with coconut flakes and cherries