キモい
Kimoi
きもい
Kimoi is a shortened form of 'kimochi warui' (気持ち悪い), meaning disgusting or gross. Used since the 1990s, primarily by younger speakers. It expresses strong revulsion toward someone's appearance, behavior, or vibe. Variations include 'kimo' (キモッ) and 'kimmo' (キッモ) for extra emphasis. It's extremely direct and hits hard. In the Kansai region, 'kishoi' (きしょい) is the preferred equivalent.
Examples
あの虫キモすぎる。近づきたくない
That bug is way too gross. I don't want to go near it.
Reacting instinctively to finding a bug
職場のおっさんから飲みに誘われたんだけど、マジキモい。
Some old guy at work asked me to go drinking. So gross.
A young woman expressing disgust at an unwanted invitation from an older coworker
あいる、キモすぎ
That guy is so gross.
自分の寝顔動画見たらキモくて笑った
I watched a video of myself sleeping and it was so gross I laughed.