caravan: 1 n terrible device which attaches to the back of your car and allows you to take your whole family on holiday at minimal expense and with maximum irritability. They’re more popular in Europe than they are in the U.S., where they’re called “trailers.” Be careful not to confuse a touring caravan (which a family will generally keep outside their house and drag behind their normal car somewhere for a few holidays a year) with a static caravan, which is generally deposited once by a truck and left there. Americans call both of these things “trailers,” and where a distinction is needed they’ll call the touring variants “travel trailers.” The devices that Americans call a “fifth wheel” — caravans which attach to a conventional diesel truck — are pretty much non-existent in the U.K. Another caravan variant common to both sides of the Atlantic is the “trailer tent,” which is like a caravan except the walls and roof fold out like some sort of ghastly mobile puppet theatre. No doubt you’re much less confused now. I could go on about caravans for days. 2 v the act of staying in a caravan: Doris has taken it into her head to go caravanning this weekend.
The nice chap who emailed me tells me that he's never seen "trailer" used like this in the US, and would expect much more to see Americans say "camper". Any thoughts on this? I think I've generally heard "trailer" more often than "camper" in the US, but anyone else have any thoughts?