A person who breaks open safes, a burglar : a yegg.(noun)
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Use "yeggman" in a sentence
"He was determined now that the fellow should have a lesson indeed; so while he held him at arm's length with one hand, he pummeled him with the other until his face was a mass of bruises; and then, when the yeggman was in a condition bordering upon insensibility, Nick raised him bodily from his feet, and holding him in his arms, ran with him down along the path toward the water."
"Before the yeggman could make reply the girl spoke up quickly."
"I always wanted to be a brakie, and then a yeggman."