ガクガク
gakugaku

Suru Verb
na-Adjective
To-Adverb

1. trembling (with fear, cold, etc.); shaking; chattering (of teeth)

Onomatopoeia
すこ はしっただけで ひざがガクガクしてるよ。
sukoshi hashittadakede hizaga gakugaku shiteruyo.
All I did was run a little and now my knees are wobbly.
Suru Verb
na-Adjective
To-Adverb

2. coming loose; wobbling

Onomatopoeia
Other forms: