don't get your knickers in a knot

Don't become overly upset or emotional over something, especially that which is trivial or unimportant. Primarily heard in UK. Ah, don't get your knickers in a knot, I'll have the car back by tomorrow morning! A: "Oh no, our picnic is ruined!" B: "It'll stop raining soon—don't get your knickers in a knot." Would you calm down? This really isn't a big deal, so don't get your knickers in a knot.

get (one's) knickers in a knot

To become overly upset or emotional over something, especially that which is trivial or unimportant. Primarily heard in UK. Ah, don't get your knickers in a knot, I'll have the car back by tomorrow morning! In my opinion, people are getting their knickers in a knot over this election. A: "Oh no, our picnic is ruined!" B: "It'll stop raining soon—don't get your knickers in a knot."