spit blood

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spit blood

To strongly express one's anger, typically verbally. Unless you want to get yelled at, stay away from the boss today—he's spitting blood over that printing mishap.
See also: blood, spit

spit blood

be very angry. informal
See also: blood, spit

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!
See also: blood, feather, spit