Bloodclart is a word used for many years in Caribbean culture as an extreme insult. This could be derived from “blood cloth” or “blood clot” in English language. Blood cloth referring to a sanitary towel
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.