What is the collective nouns for rubbish?

There isn't one specific collective noun for rubbish that is widely recognized.

However, depending on the context, you could use some creative options like:

* Heap/Pile/Mound of rubbish

* Dump of rubbish

* Collection of rubbish

* Mass of rubbish

* Litter of rubbish (though this usually refers to smaller items scattered about)

You could also use a more descriptive term depending on the type of rubbish:

* Pile of debris

* Heap of garbage

* Dump of trash

Ultimately, the best way to describe a collection of rubbish depends on the specific situation and what you want to emphasize.