pi·ca·ro 
(pēkä-rō)
(pēkä-rō)n. pl. pi·ca·ros (-rōz′, -rōs′)
1. A rogue or adventurer. Also called picaroon.
2. The main character in a picaresque work when that character is a man or boy.
[Spanish pícaro, perhaps from picar, to prick, from Vulgar Latin *piccāre; see PIQUE.]