A dunghill or refuse heap is a mound of waste materials such as garbage, manure, or other discarded items. It is typically found in rural areas or places where waste disposal facilities are limited.

The difference between Binomial heap and binary heap is

Binary heap is a single heap with max heap or min heap property

and

Binomial heap is a collection of binary heap structures(also called forest of trees).

It means to heap

Todd Heap's birth name is Todd Benjamin Heap.