Combine crushed cookies and butter in a medium bowl. Press crumb mixture into bottom of a greased aluminum foil-lined 13" x 9" pan, allowing foil to extend over ends of pan. Bake at 350° for 6 to 8 minutes.
Combine condensed milk, peanut butter, and vanilla in a medium bowl, stirring until smooth.
Sprinkle chopped candy bars, chocolate morsels, peanuts, and coconut over crust. Drizzle condensed milk mixture over coconut.
Bake at 350° for 27 minutes or until lightly browned. Remove to a wire rack, and let cool in pan. Use foil to lift uncut brownies out of pan. Peel foil away from sides of uncut brownies, and cut into bars.