Nobody notices the Lesbians
At the party during the first part of the movie, where Patrick comes to Mame's apartment for the first time, there is a scene of the two of them out on Mame's terrace.
In the background are two women who are dressed in men's coats and wearing men's hats, smoking cigarettes.
Hah! I guess this is meant to illustrate the kind of people who attend Mame's parties. VERY "New York City"!
"Don't call me 'honey', mac."
"Don't call me 'mac'... HONEY!"