bun·co also bun·ko (bŭng'kō) n.
pl.bun·cos also bun·kos A swindle in which an unsuspecting person is cheated; a confidence game. tr.v.
bun·coed also bun·koed, bun·co·ing also bun·ko·ing, bun·cos also bun·kos To swindle.
[Probably alteration of Spanish banca, card game, from Italian banca, bank, of Germanic origin; see bank2.]