(slang) Synonym of vigorish (“charge taken on bets”).
(US slang, crime) Synonym of vigorish (“interest from a loan, as from a loan shark”).
1973, Martin Scorsese, Mardik Martin (screenplay), Mean Streets, quoted in 2009, Ellis Cashmore, Martin Scorsese's America, page 118,
“You charged a guy from the neighborhood $1800 vig?” he asks incredulously (“vig” is short for vigorish, meaning a rate of interest from a loan from an illegal moneylender).
Synonym of vigorish (“commission, finder's fee, or similar extra charge”).