Beer truck

Any vehicle with a headlight out. If you tap the windshield, the driver owes you a beer. This can be also done with punch buggies, but it's a bit different.

"Beer truck! You owe me one!"

by @Hiphophead March 17, 2024

Backfire

Similar to calling shotgun, but for the backseat instead of the front

"Shotgun!"
"Backfire!"

by @Hiphophead March 20, 2024