When you get mounted by a dog and the red rocket goes inβ¦.and in an effort to save face, you try to act tough and start barking and grunting like a giga chad.
Dog: Woof! Woof! Iβm gonna mount that man!
Nik: Oh no, not again!
Innocent bystander: Bro that dog is inside you!
Nik: (Obviously embarrassed) Arf! Arf! I got that dog in me! Get on my level!
Not literally meaning such, this saying instead suggests that the person saying it has qualities of a dog. Loyalty, protectiveness, strength, etc.
Person 1: How did you lift that boulder?
Person 2: I got that dog in me.
8π 1π