カクカク

• Reading: カクカク
• Romaji: kakukaku
• Pronunciation: /ka.ku.ka.ku/

Meaning

Choppy, stuttering, low framerate — describes jerky movement or poor performance in video, games, or animations.

An onomatopoeia describing jerky, angular movement, カクカク perfectly captures the visual experience of low framerates or choppy video. Originally describing physical jerky motion, it became essential gaming and tech vocabulary to describe poor graphics performance, laggy video playback, or stuttering animations. The reduplication (カク → カクカク) emphasises the repetitive, jarring nature of the stuttering.

Examples

1. このゲーム、設定上げすぎてカクカクなんだけど。 I turned the game settings up too high and now it's super choppy.
2. Wi-Fi弱いと動画がカクカクして見れたもんじゃない。 When the Wi-Fi is weak, the video gets so choppy it's unwatchable.
3. 古いスマホだからアプリがカクカク動くのは仕方ない。 It's an old phone, so there's nothing you can do about apps running choppy.

Usage Guide

Context: gaming, tech discussion, video streaming

Tone: complaining, descriptive

Do Say

• カクカクすぎてゲームにならない。 (It's so choppy the game is unplayable.)
• 画質下げたらカクカクしなくなったよ。 (It stopped stuttering when I lowered the quality.)

Don't Say

• カクカクとラグいを混同しない — カクカクは描画の問題、ラグいは通信遅延 (Don't confuse kakukaku with laggy — kakukaku is a rendering issue, laggy is network delay)

Common Mistakes

• Confusing カクカク (choppy visuals) with ラグい (network lag) — they describe different technical problems

Origin & History

Japanese onomatopoeia for jerky, angular movement. Applied to technology since the early days of computer graphics and gaming, where low framerates caused visibly choppy motion.

Cultural Context

Era: 1990s-2000s gaming and computing

Generation: All ages (especially gamers)

Social background: Universal, especially gaming culture

Regional notes: Used across all of Japan. A standard onomatopoeia that everyone intuitively understands.