stock up
US /stɑːk ʌp/
UK /stɑːk ʌp/

1.
menyimpan, menimbun
to buy a lot of something in order to have enough for a period of time
:
•
We need to stock up on groceries before the storm.
Kita perlu menyimpan barangan runcit sebelum ribut.
•
She always stocks up on her favorite coffee when it's on sale.
Dia sentiasa menyimpan kopi kegemarannya apabila ia dijual.