Coolie
/ˈkuːli/
Definition 1 of 2
Pro Tip 1/3Heavy Burden
Refers to physically taxing labor, implying the work is hard and person is underpaid. 
He earned his living as a coolie, hefting luggage at the train station.
Pro Tip 2/3Cultural Context
Mostly used in Asian contexts, typically regarding historical labor practices. 
The coolie workers helped build the railroads in colonial times.
Pro Tip 3/3Modern Sensitivity
May be considered outdated or insensitive in modern language use. 
Use 'manual laborer' instead of 'coolie' to describe workers today.