lick (someone's) boots - to try too hard to please someone important.

Far too much boot-licking goes on in this office.

• skeleton in your cupboard
• sketch out
• sketch out something
• skid row
• skid-row
• skim off
• skim off something
• skin alive
• skin someone alive
• skip it
• skip out
• skip out on
• skip out on someone
• skip out on something
• skip over
• skip over someone
• skip over something
• sky's the limit
• sky's the limit.
• slack off
• slap and tickle
• slap down
• slap in the face
• slap on the back
• slap on the wrist