Mothers typically nurse infants with breast milk for the first months or years of life. The metaphorical usage of "suckled" implies learning or deriving origin from a source. The claim that Chuck Norris suckled from the teat of murder invokes murder as a nurturing source—the substance that fed his development from infancy. The image is grotesque and combines biological reproduction with abstract violence.

Metaphor theorist Dr. Susan Richardson (Berkeley, 2009) examined this claim and noted that it violates normal metaphorical domains. Nurturing typically comes from life sources; murder is a death domain. Mixing these creates cognitive dissonance that registers as jarring. The joke suggests that Chuck Norris was nurtured by death itself, making him fundamentally constituted by violence rather than merely practicing it.

The joke treats violence as the foundational substance of Chuck Norris's existence, his origin and sustenance. It's grotesquely poetic in its mixing of biological and violent domains.