When you wake up with morning wood and can’t get rid of the boner, so you get angry. The anger leads to being increasingly focused on erection, making it stick around for longer and creating a vicious paradox.
"Rambo looked into the toilet to discover his creation poking proudly through the bog like an island in the middle of a murky swamp. Thats a sturdy grumpy stumper."
"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.