The end of Thoroughly Modern Millie:
(pretty much the entire last two pages, but these are my two favorites)
Millie: You don't think...
Jimmy: I do.
Millie: You don't mean...
Graydon: WHITE SLAVERY!
(because that's always the logical conclusion when someone doesn't show up for something)
AND
Muzzy: So you see snookums, you can marry the boss after all.
Milly: Who cares? I found myself a green glass love.
Jimmy: Funny, I found myself an emerald.
Whatever happened to class?