Nagasaki racing snake
A Nagasaki racing snake is a person so skinny, they could probably win a race by just standing still.
'That’s a Nagasaki racing snake. He’s so thin, he’s like a pencil that’s been used for 10 years.'
'She’s so skinny, she could fit in a fridge and still have room for a salad.'
'He’s a Nagasaki racing snake. He looks like a noodle that got run over by a car.'