I posted this to the uncommon words group (highly recommended), but in this case I could see it being removed because it isn't in the dictionary yet (because it's a word I made up), but I thought posting it here also would memorialize it.
Rereiteration: a phrase in which many of the words all mean the same thing (bad definition, I'm still working on it)
This is a word I've coined, so if that doesn't count, I'm happy to remove this post, but thought the folks here would appreciate it and the little story. Another post on the site recently showed a pic of the Amazing Randi and it reminded me of a podcast he made once about his friendship with Isaac Asimov, in which they discuss phrases loosely of the form, "Beowulf is an eternal epic for all time." He used the term "double redundancy" to describe it, but I thought using a doubly redundant term to describe it would be better, so I came up with rereiteration.