A jorum is a large bowl from which you can serve many drinks. You could also call a jorum a punchbowl.
If you throw a party and fill a bowl with fruit punch, ladling it into cups for your friends, you can call the bowl a jorum, although most of your guests will probably refer to it as a punchbowl. Not many people still use this eighteenth century word, which may be rooted in a Biblical character, Jorum, who "brought vessels." The Jorum Glacier in Antarctica is named after this word because of the scooped-out bowl shape at its head.