|a slippery slope
||a path that leads to problems, a risky plan
||Nationalism is a slippery slope. It often leads to racism.
|a slow day
||not productive, not many customers
||Tuesday is a slow day in the car market - very few sales.
||a group, a bunch
||A slug of bats hung from a rock jutting out of the cave's ceiling.
||(See it's a snap)
||a lot to smell or drink, get wind of
||When the coyotes get a snootful of our campfire, they'll run.
|a snow job
||a false story, a phony deal, a rip-off
||I knew it was a snow job. They said if I ordered some pens, I'd receive a new TV.
|a snowball's chance in hell
||little or no chance to succeed
||If I write the test now, I won't have a snowball's chance in hell.
|a soft touch
||a person who will not refuse, an easy mark
||Barry's a soft touch. Let's ask him for a loan.
|a spot of tea
||a small cup of tea, a drink of tea
||When I visit Mrs. Smith, we always have a spot of tea.
|a state secret
||(See it's not a state secret)