As a regular member, no — the Krewe needs a name attached to every membership, which isn’t possible when one person buys a stack of them. (Whoever pays is, in the end, immaterial; reimbursing or gifting the cost privately is fine. The constraint is only that each membership ends up under the name of the person actually rolling.)
Captains, however, do have a bulk-purchase tool. The captain buys multiple memberships in one go and receives codes to distribute; each member still creates their own Krewebacchus account, but once they do they can redeem the captain’s code in lieu of paying dues themselves.
The video below walks captains through the process: