From the files of W E B C E N T E R ...
Cascade, weiner-doggy n. A type of cascade where an element is added to the sentence with each followup, making each succeeding entry longer and longer:
>>>Weiner-doggy.
>>Neutered weiner-doggy.
>Syphlitic neutered weiner-doggy.
Syphlitic neutered weiner-doggy with worms.