ex-convict; former prisoner
Colloquial and somewhat rough term for someone who has been released from prison. Often carries a negative or stigmatizing nuance.
Rumor has it that guy is an ex-con.
When they found out he was a former prisoner, everyone kept their distance.
出所者 is a neutral, official term for a released prisoner, whereas ムショ上がり is colloquial and often derogatory.
Common colloquial spelling using katakana for ムショ (prison) and kanji for 上がり.
Kanji spelling; 務所 is a slang abbreviation of 刑務所 (prison).
Compound of ムショ (slang for 刑務所, prison) and 上がり (from 上がる, meaning 'to come out' or 'to be released'). The exact origin of ムショ is uncertain, but it is a common abbreviation in underworld and colloquial speech.