cartchip
nounUK /ˈkɑːt.tʃɪp/
US /ˈkɑːrt.tʃɪp/
A cartchip is a small flat piece used to mark or pay for a cart.
She dropped a cartchip into the slot to unlock her shopping cart.
OTHER MEANINGS
2. A tiny chip of wood or metal that comes off a cart.
He swept up the cartchips left on the floor after the wheels scraped the wall.
3. A small snack chip sold from a food cart.
The vendor handed us a bag of warm cartchips with our hot dogs.
4. A digital tag attached to an online shopping cart.
The site adds a cartchip to remember what you left behind.