Go-go four-four blood in your bath bitch
from Smoke DZA (Ft. Sean Price) – Fuck Your Mother Lyrics on Rap Genius
Meaning
The ultra rare double allusion:
The Go Go Gadget theme song from the Inspector Gadget cartoon
As well as the famous Jacques-Louis David painting of the Death of Marat:

French Revolutionary leader is depicted lying dead in a blood filled bathtub.
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