洗濯機 – Sentakuki (せんたくき) – Laundry machine
Sounds like – “sent a cookie”
Mnemonic story – In Japan all laundry machines are powered by a cryptocurrency called “kukis (cookies).” These are stored in a app on everyone’s phone. Everyone gets an allotment of kukis every month in order to better conserve Japan’s water supply. The number of kukis you get a month always changes, leading to high stress levels. Everyone is always relieved when they are “sent a kuki” in their app to use the laundry machine.
Japanese Mnemonics and Memory Tricks 