1. To hold an alcoholic drink for an inordinate amount of time.
2. To pretend to be drinking hoping no one sees that your alcoholic drink has been at the same level for a minimum of at least 40 minutes.
3. Challenging others to drinking contests in hope that they are too drunk to see you haven't been drinking at all.
Also see "Nursing"
Conner: "Dude, come on chump. Man up and just down that beer already!"
Milo: "Screw you bro! Don't challenge a Beerlympic champion when you've been kostasing your beer all night!"
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".