Sad-ass
Safe pair of hands
Salad days
Saved by the bell
Sea change
Scarper Flow
Scot-free
Scrape together
Scrub up
See eye to eye
Sexton Blake
Shoot down in flames
Shoot straight
Shoot through
Shot in the arm
Shovel ready
Side boob
Sight for sore eyes
Silver bullet
Silver fox
Silver surfer
Silver threads amongst the gold
Silver tongued
Sit tight
Sixth sense
Skeleton in the closet
Skid row
Slap on the wrist
Sledgehammer to crack a nut
Smell a rat
Smell something fishy
Sniff test
Son of a gun
Sorry sight
Sparrow fart
Spitting image
Spoiler alert
Stab in the back
Steal someone's thunder
Step up to the mark
Stitch in time saves nine
Stitch up
Stone's throw
Straight from the horse's mouth
Stranger things have happened
Suck it up
Swing by
Swipe right
Syrup of figs
© Gary Martin