Spit feathers - Idioms by The Free Dictionary
slang To be thirsty. Come on, man, I'm spitting feathers here—can't we stop for a drink?
spit feathers be very thirsty. informal
spit ˈblood/ˈvenom/ˈfeathers show that you are very angry; speak in an angry way: That man made me so angry that by the end of the meeting I was spitting blood!