| Idiom | Meaning | Example | 
| showdown | 
final fight or contest, rubber match
 | 
Ali defeated Frazier in the boxing showdown of the '70s.
 | 
| shrink/head shrink | 
psychiatrist, therapist
 | 
If I can't manage my personal life, I can always visit a shrink.
 | 
| shrinking violet | 
(See no shrinking violet)
 | 
 | 
| shrug it off | 
not let it affect you or bother you
 | 
He was hurt by the remark, but he shrugged it off and kept working.
 | 
| shuck on down to the fraidy hole | 
go to the cellar for shelter from a cyclone or tornado, hide when you are afraid
 | 
When my uncle saw the sky turn black in the afternoon, he would shuck on down to the fraidy hole.
 | 
| shucks | 
oh dear, well, heck
 | 
Aw shucks, Beth Ann, you know I care a whole lot for you.
 | 
| shuffle the chairs on the deck | 
appear to change by moving things around, play musical chairs,
 | 
Shuffling the chairs on the deck will not help a sinking ship!
 | 
| shut down | 
stop operating, quit
 | 
Without electricity, the factory will have to shut down.
 | 
| shut-down | 
closure, end of operations
 | 
Cold weather sometimes causes a shut-down of our schools.
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| shut-in | 
someone who is ill and cannot go outside
 | 
Our priest visits the shut-ins - people who must stay at home.
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