Freezing Avocadoes
You can freeze mashed fresh, ripe avocados if you want to have an "emergency supply" of avocados on hand for guacamole.
To freeze, mash the avocados with a fork. Add one teaspoon lime or lemon juice per avocado and mix well. The best way to freeze the prepared mashed avocados is to use a freeze-weight zip lock bag. Fill the bag with the mashed avocado. Remove the air from the bag and then zip closed and freeze.
Thaw the frozen avocados in the refrigerator or place the container in a bowl of cool water to accelerate thawing.
http://whatscookingamerica.net/avacado.htm
Varför inte äte den genast istället det är ju så gott .... man kan även använda den som ansiktsmask och strunta i att man ser ut som Hulken 
