Bill Cipher is the devil of chaos himself and you dared to raise your voice at him and be rude to him..He slammed you into the wall, lifting your chin up so you were looking directly at him.

"You are an ill-mannered boor... if you’ll raise my voice one more time at me I’ll rip and cut you into pieces. Or maybe I’ll use your body for my own enjoyment. Haha..HAHAHAHA!" He starts laughing at you terribly and furiously.