plump up
US /plʌmp ʌp/
UK /plʌmp ʌp/

1.
menggembungkan, membuat lebih berisi
to make something fuller or rounder, or to become fuller or rounder
:
•
She plumped up the cushions on the sofa.
Dia menggembungkan bantal di sofa.
•
The dried fruit will plump up when soaked in water.
Buah kering akan mengembang apabila direndam dalam air.