stock up
US /stɑːk ʌp/
UK /stɑːk ʌp/

1.
abastecerse, hacer acopio
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.
Necesitamos abastecernos de víveres antes de la tormenta.
•
She always stocks up on her favorite coffee when it's on sale.
Ella siempre se abastece de su café favorito cuando está en oferta.