co
In Zaragoza, Aragon, this is a shortened form of chico (boy/guy). It is used as a filler word or to get someone's attention, much like dude, man, or hey. In the province of Huesca, the variation quio is used instead. (It is the most iconic marker of the regional Aragonese accent).
To get attention: coo, you dummy, listen to me. Indignation: they stole my phone co. Others: What are you saying co? / Go jump in a lake co.
Automatically translated from Spanish
España