Dunking Booth
From OAPedia.com
The Dunking Booth is the nickname for the glass-enclosed room that Robin Quivers sat in during The Howard Stern Show. When Opie and Anthony began broadcasting from Howard's old studio in 2006, the Dunking Booth was converted to the phone call screeners' room.
The Dunking Booth was also called the Monkey Dunk Tank by Jay Mohr.