pollero

[ paw-ye-raw; English poh-yair-oh ]
/ pɔˈyɛ rɔ; English poʊˈyɛər oʊ /

noun, plural pol·le·ros [paw-ye-raws; English poh-yair-ohz] /pɔˈyɛ rɔs; English poʊˈyɛər oʊz/. Mexican Spanish.

a smuggler of Mexican workers into the U.S.