vi to live by shifts and stratagems.
2. shark ·vt to pick or gather indiscriminately or covertly.
3. shark ·vt & ·vi a rapacious, artful person; a sharper.
4. shark ·vt & ·vi trickery; fraud; petty rapine; as, to live upon the shark.
5. shark ·vi to play the petty thief; to practice fraud or trickery; to swindle.
6. shark ·vt & ·vi any one of numerous species of elasmobranch fishes of the order plagiostomi, found in all seas.