As nouns the difference between bullshit and commodity
is that
bullshit is the faeces of a bull while
commodity is convenience; usefulness, suitability.
As an adjective bullshit
is absurd, irrational, or nonsensical. Most often said of speech, information, or content.
As a verb bullshit
is to tell lies, exaggerate; to mislead; to deceive.
As an interjection bullshit
is
An expression of disbelief or doubt at what one has just heard.