what does it mean to have a strong chin
Chin (combat sports) A fighter with a "good chin" refers to a fighter with the ability to absorb blows to the chin or jaw without being struck unconscious, which can also be called a "granite chin", an "iron chin" or similar. Generally, the jaw portion of the skull, and specifically the point of the chin, is the area most vulnerable to a knock-out blow and therefore having an exceptional tolerance to punishment in this area is a great advantage to a fighter.
Color in Chinese culture Generally green is associated with health, prosperity, and harmony. Green is also the color of jade. Separately, green hats are associated with infidelity and used as an idiom for a cuckold.[2] This has caused uneasiness for Chinese Catholic bishops, who in ecclesiastical heraldry would normally have a green hat above their arms. Chinese bishops have compromised by using a violet hat for their coat of arms. Sometimes this hat will have an indigo feather to further display their disdain for the color green.