ready for rain

Originating in the Pacific Northwest, this term can be used to describe a person or group of people as being chill, laid back, "go with the flow" types. "If it rains, oh well, we'll make do". They're cool to hang around with because they aren't prima donnas or drama queens.
Alternatively used to more literally describe a laid back/outdoorsy style of dress usually involving hoodies/sweaters, wind breakers, or other water resistant layer to ward off potential inclement weather.

I was hanging out with a new group of people my friend introduced me to but one guy was being a real twat, the rest of them were ready for rain though.