A shortened version of Billy Goatting. Billy Goating or Goat for short is a parkour style of movement over the rocks and mountains in the Call of Dutybattle royale maps.
This could be used for any game though if the context is correct
Goat, or also known as a raging fuckfard, is a small, four legged mammal, mostly found with horns. They’re noisy fuckers that like to eat your clothes, hair, scream all night, and butt your gut. They suck. But they’re cute.