The Collaborative International Dictionary
Dumpage
Dumpage \Dump"age\, n.
The act of dumping loads from carts, especially loads of refuse matter; also, a heap of dumped matter.
A fee paid for the privilege of dumping loads; called in some cases tipping fee.
Wiktionary
dumpage
n. 1 The act of dumping loads from carts, especially loads of refuse matter. 2 A heap of dumped matter. 3 A fee paid for the privilege of dumping loads.