It's like a dick in a box, but instead of cutting a hole in a box you cut a hole in your house and instead of putting your dick in it you put your Cylon Raider in it.
SquaDorn, it's a nod to Rogal Dorn, the Primarch of the Imperial Fists which their color scheme is black and yellow just like test. The Imperial Fists also are known as a chapter that builds fortifications and defenses, so it's fitting to the song.