Inspired by this Reddit thread, this extension similar to 'Cloud-to-Butt' will replace common words with alternatives - such as replacing 'colander' with 'noodle stay, water go' or 'slug' with 'a snail without a house on his back'.
Go to the Chrome Web Store and install it directly.
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In Chrome, choose Window > Extensions. Drag CloudToButt.crx into the page that appears.