Slinkman is the assistant scoutmaster to Scoutmaster Lumpus and a supporting protagonist of Camp Lazlo.
He was voiced by Tom Kenny who also voiced SpongeBob SquarePants and Gary, Heffer Wolfe from Rocko's Modern Life, Carl Chryniszzswics from Johnny Bravo, Dog from CatDog, The Mayor of Townsville from The Powerpuff Girls, Eduardo from Foster's Home for Imaginary Friends, Ice King from Adventure Time and Rabbit from Winnie the Pooh (2011).
Slinkman is a banana slug, and like a real slug, Slinkman is an invertebrate organism.
He knows the Bean Scout handbook cover-to-cover (although he seems to always read it upside down). He's shown to be loyal, kind and obedient. Even though Slinkman is the one who basically runs Camp Kidney, he still has to answer to Scoutmaster Lumpus. Also, he generally assumes a submissive role, doing nearly everything for Lumpus and almost always obeying his every command.
There have been a handful of situations where Slinkman stood up to Lumpus, such as when he wanted to go to "Slugfest" but Lumpus wouldn't permit it even though it had been part of the agreement to employ Slinkman some years before, that is until Slinkman went berserk and wrecked all of Lumpus' possessions, belched into the camp PA system and licked Lumpus' hands, getting slug slime all over them. However, these instances are the exception and are usually only when Slinkman's compliant, non-confrontational nature is pushed to the limit.
Slinkman has to do a lot of things but he does love kids, particularly those of Jelly Bean Cabin and sometimes acts like one of them. He's a master at shadow puppets, complete with an imitation of Scoutmaster Lumpus and a good prankster. He has a not-so-secret desire to be a race-car driver and reads racing magazines. It was discovered in Slugfest that Scoutmaster Lumpus actually enjoys hanging out with Slinkman since he has worked for five years under Scoutmaster Lumpus. In the first few seasons, Slinkman always carried around a clipboard, saying, "Yes Sir", almost every time Slinkman was told by Lumpus to do something while carrying a clipboard. He later abandons it and says, "Yes sir", less and less as the series progresses, eventually getting to the point of rarely saying it or not saying it at all.