>>12755990It's 100% a meme, I have a strong jawline and I just hit the gym regularly and am not fat.
If you are grossly overweight, have no muscle mass or are otherwise sickly, signs of that will show slightly in your face. Normal people notice it unconsciously, especially women.
Meanwhile faceblind autists that don't get any sun, don't get any exercise, have poor diets and bad skin think that the cure to their ugliness is to exercise their jaw muscles.
If a person just loses weight for a year they'll change their face more than that kid claims to have done through a year of torturous "mewing".
