When two people are in the cab of a pice of heavy equipment ie a tractor, and one person starts to perform oral pleasure to the operator of the pice of heavy equipment
Steve and Sarah went out on a tractordrive and Steve's father said he saw them cabslaggin on their way.
A girl who goes with a culchie in his tractor and does some saucy things with him in the cab. Or it can just be when she sits with him in the tractor while he works.
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".