local fauna expressions (part two)

Previously on SbaCL: I started a discussion of expressions that include names of animals that are special because both the expressions and the animals mentioned in them are local to either BrE or AmE. The discussion started with the AmE raccoon eyes and (slightly cheating) BrE pissed as a newt. While I was having a hard time coming up with more related to British (and not American) animals, Swedish Teacher's Beau yesterday suggested flat as a hedgehog, which works. The thing to understand here is that hedgehogs are very often roadkill (orig. & chiefly AmE). There are only a few examples of this expression on the net and a couple more of flat as a steam-roll(er)ed hedgehog:

The sign said WATCH OUT THIS HOUSE COULD FALL DOWN AND KNOCK YOU FLAT AS A STEAMROLLED HEDGEHOG. --Story by a (BrE) pupil/(AmE) student at Abernethy Primary School
I have to make the point that the McFly version is as flat as a hedgehog on the M1! --'Michael' on Ramair 1350am Forum

But still, I can think of more relating to American animals, possibly because there are more American-and-not-British animals to name.

The groundhog, aka woodchuck, has a day named after it, Groundhog Day, which will be a familiar phrase from the 1993 Bill Murray/Andie McDowell film/movie. The other week, I had to disabuse a friend of the notion that the observation of Groundhog Day and the famous groundhog Punxsutawney Phil were not products of a screenwriter's imagination, but real cultural treasures of the United States. The superstition is that on the second of February, groundhogs awake from their hibernation and pop their heads out of their burrows. If the groundhog sees its shadow, there will be six more weeks of winter (so he pops back into the burrow), otherwise, spring will come early. The OED records another groundhog expression: a groundhog case--'a desperate or urgent affair'. Thisis mostly a regional term, chiefly used in the southern Midlands and South, according to the Dictionary of American Regional English. Here's a current use of the term:

Groundhog Case A term used by CS professors to describe a student hopelessly below the passing grade mark that absolutely needs to complete the course for a variety of reasons (graduation, marriage, work, MOM, etc...) --Software Engineering Terms glossary, West Virginia University Insititute of Technology

As for woodchucks, there's the tongue-twister How much wood would a woodchuck chuck if a woodchuck could chuck wood?

On to the skunks! There's the verb to skunk, meaning either 'to defeat, to prevent from scoring' as in (1) or 'to cheat (by not paying)'. These are listed in the OED as originally and chiefly American.

I've played games where I 'skunk' the opponent, winning without any meaningful response, and it's ego-building, but not nearly as fun. --emlprime on Digg

But there's another verb sense of skunk that the dictionaries don't record: 'to be sprayed by a skunk'. If one Googles "got skunked", one finds lots of examples of that sense:

Our dog recently got skunked for the 2nd time in 5 months. --from Berkeley Parents Network advice forum

Another skunk-derived expression is the adjective skunky, meaning 'to smell/taste bad, in a skunk-like way'. This is not completely foreign to BrE (OED doesn't mark it as AmE), but it's not quite as, um, pungent here as one can't be expected here to know what a skunk smells like--but there are few mainland Americans who've escaped this unpleasant bit of education.

To play possum is listed in the OED as 'orig. U.S.', but again, it's one I've had to explain when I've used the phrase in the UK. It means 'to play dead; to feign injury/illness; to pretend to be asleep'. This follows from the fact that (o)possums are thought to play dead in order to trick their predators--in fact, what they do is pass out, but it has the same effect.

Goodness knows, there are probably other local fauna expressions I'm missing. I've speciali{s/z}ed here on a certain size of animal, it seems. Feel free to add other examples in the comments.