IPA: /ˈkɑːr.hɒp/
KK: /ˈkɑrˌhɑp/
A person who serves food and drinks to customers in their cars at a drive-in restaurant.
The carhop brought our burgers and shakes right to our car.
Carhop → The word is formed from "car" (from Latin *carrus*, meaning a wheeled vehicle) and "hop" (from Middle English *hoppen*, meaning to leap or spring). A carhop originally referred to a person who would leap or spring to serve customers in their cars, typically at drive-in restaurants.
Imagine someone 'leaping' ('hop') to serve you while you're in your 'wheeled vehicle' ('car') — that's how a carhop serves customers.