put a pin in (something)
v. phr.— «Studio executives have realized that paying the actor tens of millions of dollars to terrorize a movie set and ultimately deliver a box office stinker was perhaps not the most cost efficient strategy. They then decide to “put a pin” in the projects, as the Hollywood parlance goes, much as you would do to a balloon.» —“Jim Carrey Cuts Out UTA In Hopes Of Curing Career Cancer” Defamer Sept. 14, 2006. (source: Double-Tongued Dictionary)
Further reading
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...