To use a vehicle that is most likely not yours to pass time by driving it on a random route. Usually stealing the vehicle is part of the joyride. Most joyrides involve some form of law-breaking such as speeding, wreckless endangerment etc.

when you're hungover as shit after a spending a night drunk as a skunk

a fast, reckless ride taken in a stolen vehicle solely for pleasure

Something you don't tell your mother you are doing when you are going out driving with buddies on Friday night because she'll freak shit and not let you go.

Driving aimlessly with friends at night causing trouble and looking for stuff to do. This may include stealing lawn items, wrecking cars, mailbox baseball, messing with pedestrians, doughnuts, e- brake slides , yelling racial slurs at foriegners, terrorizing basically everyone, ect...

people belonging to groups like these are so smooth and stealthy they are often reffered to as "urban ninjas"

to use a vehicle that isnt yours and drive it around.usually the car is mashed up after the ride

When a teenager takes his parents car keys and drives around town (usually messing up the car)