One カタカナ I found very interesting was ジェットコースター. Supposedly, it translates to this: ジェットコースタ(roller coaster) Here is one that I thought meant consent コンセント I looked more into onomatopoeia since I thought they would be a bit more funny and wacky, so here are some of those カタカナ: ケロケロ ブーブー ズルズル ニャーニャー(meow) ゴロゴロ(purr) コンコン Here is another very interesting カタカナ I found, イン・キー It mean locking your keys inside your car. To me this one was the most surprising カタカナ since I would have never guessed that there would be a word for this.