Blocking means purposely going left or right or doing any thing to prevent the opponent from passing you, even if his car is faster then yours. This is also called dirty racing, but it is allowed in racing. In auto racing fender bumping is also allowed. Fender bumping means purposely hitting the car front of you. What does pit lane means.
Pit lane is an area where the cars come to get their tires and gas tank filled up.
When cars come to the pit lane they have to go 55mph. However, for some reason they decide not to go the required speed limit they will be assessed a ten seconds penalty, which means after the driver has received services in the pit lane he will have to stay ten second longer for going fast on the pit lane. A typical pit stop in any auto racing. This is an example of a Formula 1 Pit stop.