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
Tess	[tes]
Leontius	-	Ancient Greek (Latinized)
Tabatha	TAB-a-thə	English
Sneed	[sni:d]
Sjors	SHAWRS	Dutch
Mojgan	-	Persian