4-F


Meaning of 4-F in English

ˈ ̷ ̷| ̷ ̷ noun

( plural 4-f's )

Usage: usually capitalized F

Etymology: so called from the arbitrary official designation of the class of registrants consisting of those men found unfit for military service under the Selective Service System established by the United States during World War II

: one who is rejected for military service because of a physical, mental, or moral disability

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.