(as) skinny as a rail

(as) skinny as a rail

Extremely thin. I was always skinny as a rail growing up, but I really filled out once I hit puberty. You want to play football? But you're as skinny as a rail—you'll get creamed! I was skinny as a rail after I returned from my service trip, so my mom insisted on making me home-cooked meals for a month.

See also: rail, skinny

Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.