The boy's name Jeffy\j(ef)-fy\ is a variant of Jeffrey (Old German). See for meaning of Jeffy.
The baby name Jeffy sounds like Jeff and Jeffey. Other similar baby names are Jefry and Jeffry.
Jeffy is a very rare male first name and a very rare surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Jeffy. Compare Jeffy with related baby names.