be (as) thin as a rail
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.
See also: rail, thin
Farlex Dictionary of Idioms.
- (as) thin as a rake
- thin as a rake
- (as) thin as a rail
- thin as a rail
- be (as) thin as a rake
- be (as) thin as a stick
- (as) thin as a stick
- (as) skinny as a rail
- rail
- beanpole