noun
Rube Goldberg machine
A deliberately over-engineered contraption that performs a simple task through a chain reaction of complex, whimsical steps. Used in Japanese to describe such machines or metaphorically for unnecessarily complicated processes.
彼は朝食を作るためにルーブ・ゴールドバーグ・マシンのような装置を組み立てた。
He built a Rube Goldberg machine-like device to make breakfast.
この手続きはまるでルーブ・ゴールドバーグ・マシンだ。
This procedure is just like a Rube Goldberg machine.