Splatoon Freaks are creatures with Splatoon squid bodies that have strange and unique powers within them that makes them stand out from the rest. They are usually shown in GMod or SFM animations.
They are mainly based off TF2 Freaks/GMod Monsters.
Splatoon Freak's Traits
Like TF2 Freaks, Splatoon Freaks are easily identifiable as they have a strange, mystical ability which is why there are called 'Freaks'.
They also show that they are "Freaks" by their behaviour, that being unusual from a regular person or in this case, a squid from Splatoon.
List of known Splatoon Freaks