What does Jeffy mean?
(male) Jefan, Jefni, ..
(female) Jefae, Jefje, .. Middle name pairings:
Jeffy Gustavo (J.G.), ..
How popular is Jeffy?
Jeffy is an uncommonly occurring given name for males. Jeffy is an uncommon last name too for both adults and children. (2000 U.S. Demographics)
Which version is better?with its source form and related boy names. Popular variation forms of Jeffy (not ranked) are Geoff, Jeff, Jefferey, Jeffery (#776 in recent rankings), Jeffrey (#290), Jeffry and Joffre. These forms of Jeffy were favored by parents 6 decades ago (usage of 2.3%) and have become much less popular since (usage 0.1%, down 96%), with versions such as Jeffrey becoming less in vogue. (Top Baby Names, 2015)