A term commonly used when the cannabis supply is running low and they need to go to their supplier to replenish their stocks. It can also be used as a general term for anyone who needs to buy more cannabis.
Merriam-Webster Online Dictionary
re-up (verb)intransitive verb
to sign on again - re-upped with the team for three more years , especially to enlist again
Restock, Resupply, Replenish, Reload, Refresh
