spiv

noun4

1. •
   (UK, Ireland) A smartly dressed person who trades in illicit, black-market or stolen goods, especially during World War II.
2. •
   (UK, old-fashioned) A flashy con artist, often homeless, who lives by his wits.

   • I mean, Mayfair is just top spivs stepping into the slippers of the former gentry, and Belgravia, like I've said, is all flats in houses built as palaces, and Chelsea—well! — 1960
3. •
   (UK, old-fashioned) A low and common thief.
4. •
   (UK, old-fashioned) A slacker; one who shirks responsibility.