"Up the Gumpstump" is a saying used to describe a large quantity of anything.
Elderly
people are more prone to saying "Up the Gumpstump" than other
people. Most particularly when they are stressed about something they have a lot of.
Merged words (
gump & stump) believed to be originated from the words gum stump. A gum stump is a stump of a gum or Eucalyptus tree.
Used as an exclamation!