Lexicographer Jonathon Green’s comprehensive historical dictionary of slang, Green’s Dictionary of Slang, covers hundreds of years of jargon, cant, and naughty talk. (If you don’t see any words on the timelines, zoom out using the bar on the right.) We’ve already had fun with the classiest terms for naughty bits. Here are the most adorable terms for sexual intercourse from the last 600 or so years. Many of them have origins so obscure they hardly make sense at all, but that doesn’t detract from their bawdy adorability in the slightest.