an odious, sedimentary mist derived from the anus containing fine particles of fecal matter when expelled through the spincter. Tends to be unpredictable and can result in what is known as a 'dookie stain'/'shart'
Oh NO!!! I just blew fecal dust all over my new pants, down my leg and into my shoe.
by easy mackin February 21, 2010
Can you define these popular missing words?