I'd never heard of a "semi-truck". I've always known of them as "artics" - short for articulated. Source: my childhood best friend's dad was a truck driver (n

I'd never heard of a "semi-truck". I've always known of them as "artics" - short for articulated. Source: my childhood best friend's dad was a truck driver (not artic though) and a day out in the lorry was one of the best things to do in the school holidays. EDIT: I notice the linked article "why are they called semis" actually calls them articulated.