The act of searching out somebody who has just achieved something good and then instantly ruining it for them by doing something annoying to take the shine off of it. Usually a whole day activity as finding somebody who has just achieved success isn't easy.
If someone gets a good grade in an exam, throw a pint of milk in their face.
If a kid learns to ride a bike for the first time, run up and push it over.
When you cruise around in a car and yell obscenities at strangers walking down the street. You know you have given a successful car bastard when your victim stutters or gives a dumbfounded look
All summerlong, we go out car bastarding almost every night.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.