Icky bicky

A term used to describe something unpredictable, unstable, or constantly changing, especially in reference to the weather. When the forecast can’t make up its mind, or the sky switches from sunshine to showers in minutes, it’s totally icky bicky.

Careful! The weather is a bit icky bicky today.

We planned a picnic, but the forecast is looking a bit icky bicky, so we might need a backup plan.