Definitions for pachuco
a Mexican-American teenager who belongs to a neighborhood gang and who dresses in showy clothes
A Mexican-American, especially a juvenile delinquent in the Los Angeles area.
1998. They asked him if he was a pachuco. He said all the pachucos he knew of lived in El Paso. He told em he didnu2019t know any Mexican pachucos. u2014 Cormac McCarthy, Cities of the Plain