to end in a disappointing way.

I dated him a for a while, but our so-called romance fizzled out rather quickly.

• sick to death of something
• sick to stomach
• sick to your stomach
• sic someone on
• sic someone on someone
• sic something on
• sic something on someone
• side-splitting
• side with
• side with someone
• siege mentality
• sight for sore eyes
• sight unseen
• sign away
• sign away something
• sign death warrant
• signed and sealed
• signed, sealed and delivered
• significant other
• sign in
• sign off
• sign off on
• sign off on something
• sign of the times
• sign on the dotted line