When a vehicle sideswipes another vehicle, it hits the side of the other vehicle while driving past it.
Sideswiping is usually a bad thing because it can cause damage to the vehicles.
Examples:
The car sideswipes the truck on the highway.
The bike sideswipes the car and makes a loud noise.
The bus sideswipes the tree and breaks a mirror.
The cat sideswipes the dog and keeps running.
The giant monster sideswipes the buildings as it walks through the city.
The spaceship sideswipes the asteroid and changes direction.