When one who holds muppet-like qualities turns snarky, vicious or militant.
This quick, violent reaction from an otherwise peaceful (and somewhat slightly dull being) tends to be an automated response to those who feign intelligence or sexual prowess.
Alternatively, it may just simply be a muppet cutting sick. And so muppets should.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".