doorstop

noun4

1. •
   Any device or object used to halt the motion of a door, as a large or heavy object, a wedge, or some piece of hardware fixed to the floor, door or wall.
2. •
   (humorous) A large book, which by implication could be used to stop a door.

   • Meanwhile, all the Democrats had to put forward that year was a doorstop called Man of the House: The Life and Political Memoirs of Speaker Tip O'Neill. — 2010
3. •
   (Australia) An interview with a politician or other public figure (apparently informal or spontaneous but often planned), as they enter or leave a building.

   • And television dominates this place — just look at Beazley tossing around cans of tomato soup at his morning doorstops outside Parliament House. — 2005
4. •
   (UK, nonstandard) Eggcorn of doorstep.