Crush cookies in ziploc bag using a rolling pin until 'dirt' consistency.
Mix together cream cheese, pudding mixes, milk, and whipped topping until well blended.
Slowly stir in confectioners sugar.
Alternate layers of cookie crumbs and filling mixture in a 9X13 cake pan, finishing with cookie crumbs on the top. Garnish with gummy worms, candy bugs, or other dirt themed items. Or you can just leave it without the extra garnishes if you prefer.
Cover and refrigerate for about an hour or until ready to serve.