gunya-tto
The body suddenly losing rigidity and bending or sagging. Like a rubber toy or someone fainting.
💡A toddler going limp when picked up — 'She went gunya-tto and slid out of my arms.'
暑さでぐにゃっとなってしまった。
The heat made me go gunya-tto limp.
The baby went ___ limp in my arms.
抱き上げると赤ちゃんは○○と体を預けてきた。