What is the English word an overly skinny person? [closed]

In Russian there is a jargon word "дрищ" (~ dreeshch) that usually (depending on the context) means either diarrhea or an extremely lean, usually undermuscled person, something like the one on the picture below (not necessarily undermuscled this severely). Is there an analogous word in English?

A person so underweight might be called emaciated.

emaciated adjective Abnormally thin or weak, especially because of illness or a lack of food. ‘she was so emaciated she could hardly stand’ - ODO

If the OP is looking for a colloquial equivalent, they could choose between

• superskinny–(informal) very skinny
• thin/skinny as a beanpole If you call someone a beanpole, you are criticizing them because you think that they are extremely tall and thin
• thin as a rake–(BrEng)extremely skinny or slender.
• thin as a rail–(AmEng)extremely skinny or slender
• gangly–a person, usually a boy or young man, who is very tall and thin and moves awkwardly
• scrawny–if you describe a person or animal as scrawny, you mean that they look unattractive because they are so thin.
• be skin and bones–to be extremely thin
• anorexic–suffering from or relating to anorexia

I've always liked to use the word Gaunt to describe this. The meaning is contextual but it fits pretty well here.

extremely thin and bony; haggard and drawn, as from great hunger, weariness, or torture; emaciated.

Use as an adjective: "He was tall and Gaunt."