a chill pill

a chill pill

slang A hypothetical thing that would induce one to become calm. The phrase is typically used in the expression "take a chill pill," but does not refer to an actual pill or medication. Take a chill pill, will you? Panicking about being late won't make me drive any faster.
See also: chill, pill
References in periodicals archive ?
Take a chill pill or you will have a stroke, " one daughter told her irate mum.
For example, there's Most Accident-Prone Character, Most Creative Cross Dresser, Most Over the Top and Take a Chill Pill awards.
Take a chill pill, Benny, you know we love you really