be after (one's) blood

To seek revenge on another person. He hit my classic car, so I'm after his blood now.

Name	Pronounced	Usage
Konstanze	-	German
Michelyne	-	English (Rare)
SeÁN	SHAWN	Irish
Luzia	-	Portuguese, German
Nevenka	-	Croatian, Serbian, Slovene
Mcdaniel	[mək'dænjəl]