Definition of pogy in US English:

pogy

noun

United States Regional
  • 1A menhaden (genus Brevoortia).

  • 2Any of various large surfperches, especially the redtail surfperch, Amphistichus rhodoterus, of the Pacific coast.

Origin

Mid 19th century; earliest use found in New York Mirror. Apparently shortened from pauhagen; compare -y.