Someone who is really fat, for example, VC who never stops eating.

A pubic hair piece. A toupee for the pubic area/genitals. In the 1700’s when mercury was used to treat sexually transmitted diseases (Gonorrhea or Syphilis) one of the side effects was the loss of pubic hair. To disguise this condition, that was not cured by mercury, a Merkin was employed.

Someone with a full gas tank.

A fat person if a person who is obese. A fat person may be slightly overweight. Do not confuse a fat person with a sedentary person.

Fat person (rephrased with broad word choice)
"gluttonous unsightly figure of great mass"

Most people, especially the self-conscious collective, will view fat people in an ill and disgusted manner, though this is irrational.
Fat people are important to society, while some are hard working people who just glutton or geniuses who reward themselves by indulging, the so-called "useless" ones greatly augment the food industry.
Indeed they may appear visually displeasing , but keep in mind that when a person is fat, the person will keep eating, increasing the food industry. For those especially industrial-fodder people trying to lose weight using dietary pills(which do not work), they are supplying two industries constantly for a superb economic bonus. As for gyms, they will also ascend economic status but eventually the fat person will lose their urge to eat, driven by the incessant requests of the nagging spouse.

Every day for lunch they drinks and energy drink and eat a whole bag of chip typically bbq or salt and vinegar it is most always a girl who thinks she is attractive but looks like my moms old tampon