put a downer on something

put a downer on (something)

To discourage, inhibit, or deter something; to make something less enjoyable, pleasant, or fun; to have a subduing or deadening effect on something. The foul weather really put a downer on our picnic yesterday. Without question, this tax scandal has put a downer on the senator's likelihood of being re-elected. The construction happening near our building has really put a downer on sales this month.
See also: downer, on, put

put a downer on something

If something or someone puts a downer on an event, they make it less enjoyable. The argument put a downer on our school holiday break.
See also: downer, on, put, something