What are Metonyms? | Advanced English Vocabulary

This is worth, as they say, "reacting-to."

Most of these Self-Conscious Briticisms are indeed yours, Tom, and you may have them. Some ("tits up" in particular) are in fact old American slang, but of course you're welcome to them. And some--I'm giving you fair warning--I intend to steal: "Jammy" and "Zeh-bra Crossing" are too good to pass up. Especially since "jammies" is already American childish slang for what are in your terms "jim-jams," and it sounds a little weirdly but not unpleasantly cute.