During his shows, he frequently uses to interact with public, performing and emphasizing his lyrics, which have attributes of pessimism, repetition and artistic scatology.
en.wikipedia.org Technically, scatolinguistics is the study of the words for various forms of excrement (compare scatology).
en.wikipedia.org And somehow they measure out equal doses of corporeality (decaying bodies, weird food words, scatology) and spiritual eternity (or, depending on you read it, nullity), often in the same line.
flavorwire.com Scatology has a long literary association with satire, as it is a classical mode of the grotesque, the grotesque body and the satiric grotesque.
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