"Press Special to be disgusting!"
The Repulsive Goat is a mutator achieved when jumping in dirty water in Sewer under one of bridges in Goat City Bay map.
Doing so will also unlock the Disgusting achievement.
Abilities
Repulsive Goat getting smelly.
Pressing R creates a green cloud around the goat, pushing away nearby objects.
Repulsive Goat is also required for the Neckbeard achievement.