(informal) "mystery meat", specifically the meat-based product found in Nissin Cup Noodles

a meatball

soy meat

(vulgar) woman being gangbanged / (vulgar) a cum dumpster / (vulgar) pouring excrement on the person and treating them as a toilet bowl

"comics meat", a cut of meat depicted in manga as a single bone piercing a cylindrical hunk of flesh, not able to be found in reality

(Christianity) Incarnation (incarnation of Jesus Christ in a human body) / (Internet slang, by extension) incarnation as a 2D character (see バ美肉)

horsemeat

(manufacture) underfill

(manufacture) unnecessary usage of material, as from inefficient design or a worn mold; waste

meaty; of plump flesh