In a large ziplock bag add Oreo's and crush til small chunks. Set aside.

In a large mixing bowl add crushed Oreo's, pudding mix, hot fudge topping, and half of the thawed cool whip. Mix well til combined. Set aside.

Working fast cover the bottom of a square pan with ice cream sandwiches. Then cover the top with the Oreo mixture. Spread evenly. Cover top of mixture with another layer of ice cream sandwiches. Then cover the whole top of cake with the remaining cool whip.

Put into freezer to harden for a few hours. Take out 5-10 minutes before serving to soften for cutting. Enjoy.