Facial Clench
A Facial Clench is when you scream at zombies like they just kicked your dog and ate your lunch
'Facial Clench! I'm gonna make you eat your own brain!', Alex, after his dog got eaten
'I'm so mad I'm gonna Facial Clench you!', Emma, who had her lunch stolen
'Facial Clench! You're gonna be my zombie snack!', Jake, who was really hungry