It is a small bomb that countains radioactive matter. When it explodes the nuclear matter is spread for a long distance. The short term damage is done where the bomb explodes. The long term damage is the development of cancer in many residents in the areas that the radioactive material reaches.
A dirtybomb is nowhere near as dangerous as an atomic bomb.
A popular shot taken by stay at home mothers and cougars to get through the day/night. The shot includes a handful of Vicodin or Percoset washed down by a cannonball chug of Chardonnay or other boxed wine varietals.
April always wondered what her mother did all day. Until she came home early from school to find her mother and a full set of cougars taking Stay At Home Mom Bombs in the living room.
When your microwaving something and you try to get a bunch of stuff done before the beep goes off and if you cant make it back in time you jump behind the couch because in your mind it will explode at the beep.
Roomie: Dude why does the microwave always say :01 I always have to reset it to cook stuff.
Me: Uhhh cuz I dont want the house to explode from the microwave bomb.