てるてる坊主
“teruteru-bozu” A teruteru-bozu is a kind of doll made simply with tissues or white cloth. Children hang the doll from the eaves hoping that it will stop raining soon or the weather will be clear tomorrow. It is an old custom done by children especially when they are looking forward to a special event like a field trip the next day. But an expression using teruteru-bozu can be used among adults. When your co-worker tells you that she will have a barbecue tomorrow, you can say to her, “Teruteru-bozu wo tsurushite kudasai” meaning “Please hang out a teruteru-bozu (for good weather).” On the other hand, if you want a rainy day, it is said that you should hang it upside-down.