And Now She Raps
From the short story How to See a Bad Play by James Thurber, © 1935:
In Fig. 4 we take up the character who bobbed up (and down) oftenest in last year’s bad plays (she bobbed up and down in some of the better plays, too, but mostly in the bad plays); namely, the elderly lady who is a good sport, a hard drinker, and an authority on sex.
I had no idea that stock character had been around ruining shows for over 80 years.