Gimme has a small body, with black skin and a dark pink circle around his face. He has a wide mouth, thick lips and a blue tongue. He is dressed like an stereotypical burglar, with a green striped shirt, khaki pants and a purple furoshiki (wrapping cloth used to store and carry items) wrapped on his head.
Matching his burglar appearance, Gimme is a consummate thief, and a very cunning one on top of that, as seen when he disguises as Jibanyan and Hidabat in order to fool his victims and snatch their belongings. He has little regard for who he damages with his robbery.
Gimme is a master thief; in fact, he is behind among the regular belongings loss at home. He even is a master of disguise, as seen with his impersonations of Jibanyan and Hidabat in order to toy with his victims.
After he had stolen several items from Nate, Nate summoned Count Zapaway in order to challenge Gimme to steal the TV remote. Count Zapaway however went straight to difficulty level 5 and Gimme eventually gave up.
When viewed in the Medallium, instead of saying his name of "Gimme," he instead says "Swipinstuff," which was likely the original name he was given, indicating the change to "Gimme" was late enough into development to be unable to re-record the line.
"Dorobokkun" is a combination of dorobō (泥棒, "thief, robber") and the honorific -kun, also echoing Yoink's Japanese name.