Flesh will burn when exposed to the poetical germ grenade
Monch is comparing the power of his rhymes to the power of a germ grenade — meaning a kind of chemical weapon such as white phosphorous or other incendiary weapons like napalm. As in, people will be infected or burned when they’re exposed to Pharoahe Monch’s technical rhyming ability.
N.B. — Burns from chemical weapons have been seriously shocking in warfare, too discomforting to show here. Monch isn’t playing around.
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