[dcwusmc]

I see from your link that whackers have to do with fire departments, primarily volunteer. My son’s a fireman back in Virginia... says he’s living his dream! (Which also includes my DIL and granddaughter!) (My stepson’s got the other two grandkids!)

[JoJo Gunn]

Oh no, that was only one example. They're wannabes of any type, be it cops or firemen or EMT's or even storm chasers. 

Here's another example.