I'm not sure if there is a name for this dessert, but my Mom used to get my sister and I to make it every year. It's incredibly simple-so simple in fact that you will feel guilty sharing the recipe. On the other hand, so yummy and easy to make that it's irresistable.
2 packages Christie chocolate wafer cookies
One 500 ml carton of whipped cream (some recipes say Cool whip, but the real stuff is better)
2 tsp. sugar
1 tsp vanilla
Beat the whip cream, adding the sugar and vanilla.
Spread whip cream on one side of a cookie, top with a cookie. Continue in groups of 6 or so until you have used all the cookies in the packages. Line them up end to end. Cover the entire cookie log with whipped cream and chill for about 3-4 hours. You can top with grated chocolate or sprinkles. A nice touch might be to substitute the vanilla with rum or orange extract.
This doesn't keep long, so make it the day you are serving it. The cookies go soft and cake like, and it's such an easy thing to make that I remember making it when I was about 10 or so. Yum!