be (as) thin as a rail

To be extremely skinny or slender. Primarily heard in US. Have you seen Claire lately? I'm really worried about her, she's as thin as a rail! I've always been thin as a rail, even when I tried to gain weight.

Common Names:

Name	Pronounced	Usage
Hailie	HAY-lee	English (Modern)
Edur	-	Basque
Augustine (1)	AW-gəs-teen, ə-GUS-tin	English
Bryson	BRIE-sən	English
Rajnish	-	Indian, Hindi
Pinar	-	Turkish