Gong of Bethekk
From WoWWiki
Gong of Bethekk is located in the Temple of Bethekk of Zul'Gurub and used to summon High Priestess Arlokk.
Notes
Hitting the gong will close off the room with a magical barrier preventing escape, as well as blocking others from entering and using causing a wipe. This gong was a source of much fun, pre-TBC.
