All-time sleaziest double entendre?
If, like me, you're a connoisseur of the kind of double entendres Hollywood resorted to in the crumbling days of the Production Code, just before it was possible to talk about sex openly (and, boy, did this movie go a long way toward making THAT happen), then you'll probably agree Kiss Me Stupid is the mother lode of (barely) concealed sleaze.
Wilder, of course, was a past master of the form, pushing the envelope in 1959 with stuff like Marilyn Monroe lamenting her relationships with men in Some Like It Hot: "I always get the fuzzy end of the lollipop", and in KMS he ups the ante all the way (Dino, explaining why he wants to get Orville's wife out in the garden: "Maybe she'll show me her parsley.")
But for my money the one that boggles the mind even by today's standards involves the longest-necked wine bottle in the history of the cinema. As soon as I saw a character lug in that novelty bottle of chianti, sticking a good three feet out of its sack, I thought to myself, "Oh my God, Billy's going to go for the gold with this one!" -- and I wasn't disappointed.
The setup: Orville is cleaning out the room where Dino and Polly have been going at it (or were, until he threw Dino out) and is about to take the empty bottle into the kitchen. Polly stops him at the door and utters the immortal line, "Don't throw away that bottle. It might have a deposit on it."