Appearance
Croagunk is a dark blue bipedal Pokémon like a poison dart frog. Its eyes are yellow, and its cheeks have orange pouches.

#453
Toxic Mouth Pokémon
Croagunk is a Poison / Fighting-type Pokémon, No. 453 in the National Pokédex, introduced in Generation 4 (Sinnoh region).
« A poison wielder with a dastardly personality. Despite such qualities, this species is afforded a measure of popularity due to its peculiar cry and comical features. »
Croagunk is a dark blue bipedal Pokémon like a poison dart frog. Its eyes are yellow, and its cheeks have orange pouches.
Its pouches and fingers hide poison, and it stabs a distracted foe, though it fights only to survive. It lives in swamps and woods and evolves into Toxicroak.
Brock catches one that takes Misty and Max's place. Through Diamond and Pearl, it pulls Brock from each crush with a Poison Jab.
Takao Unno designed it after the poison dart frog. Croagunk may combine croak and gunk, meaning grime.