As a chance to do a great sound effect gag (First heard on the episode I've attached)Fibber McGee's closet was a treasured moment on the show...How it would play out was once maybe a season for some reason someone would need something from the hall closet in the McGee house, the door would open and Molly would usually scream "don't open that closet" and a thunderous clatter of items would crash to the floor, which would lead to a thunderous applause of the audience...The show did a great job of not over doing this gag and using it always with the great enjoyment of the studio audience. One episode McGee used the closet to catch a robber who held the couple up in their house.
Growing up my Mom would describe our hall closet as Fibber McGee's closet which usually was a signal for a good ole closet cleaning. I think everyone could relate to having a messy catch all closet or a junk drawer that held all the useful things to good to throw out but don't quite have a home; for a generation the term would be a happy reminder of how radio held a mirror and we could laugh at ourselves.
Enjoy!!!