yuru-yuru
Describes something that is loosely fitted or slack. Can also describe a relaxed, easygoing pace or atmosphere.
💡After stretching out a hair tie — 'This hair tie is yuru-yuru, it won't hold.'
ベルトがゆるゆるで落ちそうだ。
The belt is yuru-yuru loose and about to fall.
The elastic waistband became ___ after many washes.
ゴムのウエストが何度も洗って○○になった。