Definition: A wooded and uninhabited place (Merriam-Webster Online).
Sample usage: “The dog park by the river is a nice urban willowwacks — good for a hike, but mind the bogs of pup poop.”
Popularity: It’s a word from the U.K., so people will like to use it. Any nonsense word from the U.K. makes you feel delightfully eccentric, right? If it doesn’t, you’re just a bollywoggle.
Heard a new word or phrase you want us to dissect? Let us know at email@example.com. See previous entries at startribune.com/word.