Pulling a Kieran is when you are ill and you haven't eaten, but your squad beckons to go on the night out and due to your weakened state, you have a few drinks and you end the night spilling your guts into a gutter.
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".