Today's Parola del Giorno is the expression vestirsi a cipolla, which means to dress in layers.
This expression should be fairly obvious since onions are made up of layers. One dresses in layers in order to keep warm in cold weather, and these layers can be removed as the temperature and weather changes!
Note the use of the reflexive verb vestirsi!
See the expression used below:
“Marco, Gianni, Aurelia! Non uscite così! Fa freddo e vostra madre insiste che vi vestiate a cipolla. Adesso piove ma più tardi potrebbe uscire il sole. Meglio essere preparati."
"Marco, Gianni, Aurelia! Don't go out that way! It's cold out, and your mother insists you dress in layers. Now it is raining, but the sun might come out later. It's better to be prepared!"