1. yegg - Noun
2. yegg - Verb
yegg (plural yeggs)
(cant, slang) A person who breaks open safes; a burglar.
yegg (third-person singular simple present yeggs, present participle yegging, simple past and past participle yegged)
(slang) To rob.
Panzram later claimed that while he had been a rotten yegg before imprisonment at the military pen any shred of goodness left in him was smashed out during his Leavenworth Military prision stint 1908-1910. Carl Panzram
However, we found an earlier example for “yegg” used in the criminal sense, in the February 1901 issue of McClure’s Magazine. Source: Internet
It blends a cast of sexy and larcenous guys and molls (and one pretty-boy rotten yegg), a wittily suspenseful buildup, and a gasp-provoking payoff into a highly palatable intoxicant. Source: Internet