Meaning
Two senses. Ill feeling, resentment, or lasting enmity between people — 'there's bad blood between dem' means a bitter falling-out. And, in folk-health belief, 'bad blood' means impure or unhealthy blood (blamed for skin bumps and boils), treated with 'blood-cleansing' bush teas like cerasee and dog-blood.
Examples
-
Bad blood deh between di two family from long time.
There's been bad blood between the two families for a long time.
-
She drink cerasee fi clean out di bad blood.
She drinks cerasee to cleanse the bad blood.
-
Nuh mek bad blood over money.
Don't create ill feeling over money.
Origin
From 'bad' + 'blood'; enmity, and in folk health impure blood. See [[bad-mind]], [[cerasee]].
How it’s used
Enmity/resentment between people; also folk-health 'impure blood'. See [[bad-mind]], [[cerasee]], [[dog-blood]].