http://www.kensmen.com/slang.html
I've come across instances of this harassing tatic used on Guadalcanal,Tarawa and Saipan.A term applied, along with copious cuss words to a lone Japanese aircraft buzzing endlessly back and forth across an area, while only occasionally dropping a small bomb, the purpose being to keep the camp awake and in a nervous state. One Japanese airplane this author remembers sounded just like an old Maytag washing machine powered by a small gasoline engine- thus, the name.
Anyone know what aircraft were preferred and how the engines were modified to sound loud?