And it ain't no other mobsters we a mix between 
Tyra Banks and energy drinks fore-headed Monster

from Slaughterhouse – Funkmaster Flex Freestyle Lyrics on Rap Genius

Meaning

Slaughterhouse is a four headed monster. Four individuals who come together to make one fucked up beast in the rap game.

Fore-Headed Joking Tyra Banks excessive forehead.

Monster Energy Drink

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