When Ms Olsen says to Shirley MacClaine: "and in the end you wind up with egg foo young on your face." :-D
I'm sure many others were thinking the same thing. ;-)
The movie is full of these double entendres. When Baxter gives the bathroom key to his boss, he's basically telling him to go *beep* himself.
Couldn't that be a reference to the Chinese restaurant that Mr Sheldrake took all of mistresses to? Same booth in the back, same restaurant, as Miss Olsen so drunkenly told Fran at the Xmas party.
Yes, but the point is that it could be a double entendre (two possible meanings).