An untrustworthy or cunning person.
More example sentences
- Brennan glided to power as general secretary of his party during the sleeveen Taoiseachship of Jack Lynch.
- Indeed, blaming bad local governance and the existence of corrupt middlemen is like concluding that our sleeveens and gombeen-men of the 1840s were responsible for the Famine.
- But for the sleeveen's litigious scam to work, all that is needed is for the rest of us still to trust each other just enough.
mid 19th century: from Irish slibhin 'trickster'.