(as) flat as a tack
(as) flat as a tack
Demoralized or unenergetic. She's been flat as a tack ever since she heard that she didn't get into her top choice school.
See also: flat, tack
Farlex Dictionary of Idioms.
flat as a tack
in very low spirits or lacking in energy. informalThe idea underlying the expression is of a tack that has been hammered in so that none of it protrudes.
See also: flat, tack
Farlex Partner Idioms Dictionary
- flat as a tack
- tack
- able to do
- able to do it
- (as) flat as a strap
- strap
- be (as) flat as a pancake
- in no time flat
- in nothing flat
- flatten out