adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'
Mimetic word describing a heavy creaking or groaning sound, often from wood, floors, or strained objects.
古い床がミシミシと音を立てた。
The old floor creaked loudly.
重い荷物を載せたら棚がミシミシいった。
When I put a heavy load on it, the shelf groaned.