same definition,a greeting/call but it originally originated in Yonkers. New York
Yerro! Screaming to someone, Getting their attention, or being ackknowledged
by Al-B May 27, 2005
An urban nesting creature that has no known predators. Flies east seasonally. Top of the food chain and does not nest well with others. A creature with an undeveloped sense of humor and no known social filter. A Yero enjoys free things in his spare time.
The Yero refused to listen to anyone and devoured all the chocolate.
by Pace Car June 14, 2013
Originating in Philadelphia in the winter of 1993. Olney High School student pronounced "yo" like so while screaming across the lunchroom to friend. Following summer, everybody in Philly says "yerO" as an alternative to "yo".
YEROOOOOO! (yelling from a distance)
by angie June 26, 2003