throw caution to the winds

Idioms and Phrases

Also, throw discretion to the winds . Behave or speak very rashly, as in Throwing caution to the winds, he ran after the truck , or I'm afraid she's thrown discretion to the winds and told everyone about the divorce . This expression uses to the winds in the sense of “utterly vanishing” or “out of existence,” a usage dating from the mid-1600s. The first recorded use of throw to the winds was in 1885.