(one's) blood is up
(redirected from my blood was up)
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(one's) blood is up
One is in an angry, aggressive, or violent mood; one is looking or ready for a fight. Everyone in the office knows to avoid the boss when her blood is up.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
someone's blood is up
someone is in a fighting mood.Farlex Partner Idioms Dictionary © Farlex 2017
your/somebody’s ˌblood is ˈup
(British English) somebody feels angry and aggressive: Normally, he’s a quiet man, but when his blood is up he can be very violent.Farlex Partner Idioms Dictionary © Farlex 2017