A cuncher is someone who is to chicken shit to have sex with his roomate so he jerks off alone every night.
Cody walks into his dimly lit bathroom and finds his roomate exotically playing with her dildo. He freaks out and runs to his room and finds himself pulling out his flacid penis and jerks off all over his teddy bear. This is a cuncher. sadly a cuncher....
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".