A combination of yacking off and cackling. It can be used as an adjective or verb to refer to a group of young people disturbing public peace through loud speech interlaced with grating laughter.
The chugging of the train, combined with the constant yackling of the five girls seated in front of me, was enough to give any sane person aterrible migraine.
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".
I don't buy the schmegegge about Morty sleeping with Moira.
His version of the story was pure schmegegge.
The whole schmegegge was made up to get Liz a little bit of attention.