Scraggy is a bipedal, lizard-like Pokémon. Its oval eyes are set to the sides of its head, and its teeth appear to be constantly exposed. There is a small red scale on its yellow head. Below the yellow portion of its head, its body is cream-colored with thin arms and a red, scaly belly. It carries its loose, yellow skin around its legs, resembling trousers, which garner them more respect the saggier they are. Some of the loose skin seems to trail off to form or cover a tail. This pelt is rubbery and can be raised to its neck in order to reduce the damage it takes from attacks. Scraggy is easily engaged in battle, as it will attack any foe that so much as meets its gaze with its thick cranium. Scraggy travel in small groups.
Ash's Pokémon Egg hatched into a Scraggy in Scraggy-Hatched to be Wild!, thus also marking the species' debut. He had a headstrong and overconfident personality, and constantly viewed new Pokémon as opponents for him to beat.
Pokémon Mystery Dungeon: Gates to Infinity: Scraggy originally ran a scheme with Gurdurr, a former local carpenter in Post Town that has been ripping Pokémon off saying that he'll build stuff for them if they get gems for him at Stony Cave. Scraggy would then bump into the client on their way into town and steal the gems. The gullible Pokémon would then keep going out to Stony Cave to get gems for Gurdurr. When the player and partner discovered the scheme at Hazy Pass thanks to Gurdurr's two apprentices, Timburr, they jumped out to engage both Scraggy and Gurdurr in battle. After their defeat, Scraggy ran away, while Gurdurr ventured further up the mountain, where the player, partner, and Timburr would eventually convince him to become a carpenter again. Scraggy was later apprehended, and Quagsire forces him to work for the benefit of the player and partner by opening a shop and helping their team remember moves. Scraggy still holds a grudge against the team for revealing him and started to tease the team with nicknames, only to get reprimanded by Quagsire. He also explains the seasonal V-Wave wind to the player and partner on the day that Victini arrives in town.
Spoilers end here.
This Pokémon was unavailable prior to Generation V.
Scraggy appears to be based on a sort of lizard. In addition, with its moulted skin "pants", Scraggy seem to encapsulate stereotypes of youth subcultures of the past several decades, namely hip hop or punk.
Scraggy is literally thin/scrawny, but it may also be a combination of scrappy (referring to its tendency to fight) and saggy or baggy (in reference to its "pants"). It may also refer to scraggly (scruffy or unkempt).
Zuruggu is derived from 狡 zuru (sneaky person) or 狡い zurui (crafty). It may also derive from ずるずる zuruzuru (loose or the act or sound of dragging).