Weak Chin
Anyone who has anything resembling the thing that isn't on the bottom half of Leafy's face has little to no chin
"Weak Chin"-CHIN CHINERY, CHIN CHINERY, CHIN CHIN CHEREE, NO CHIN IS LUCKY, AS LUCKY CAN BE
Weak chin
Someone lacking a chin, whose mouth appears to be joined to their neck.
Ugh, I cannot stand David and his weak chin.