A prank you pull on automobiles. Involves stealing and placing off gutters, hence the term guttering. The result is a large noise. Usually done in smaller groups (3 to 6 humans). Done in the dark usually from 11 pm to 3 am. Preferably earlier because sometimes cars are hard to come by really late. This is the first definition for the subject so I'm assuming it is fairly unpopular.
The Steps of Guttering:
1. Steal a gutter off someones house.
2. Put gutter in the semi-busy street when you see no cars.
3. Run, and hide. Make sure it is a good spot just in case the car stops and the passengers pursue you.
4. Car hits the gutter and makes a loud noise. HAHA.