An exaggerated swagger that is worthy of note. A person walking in a way that is clearly trying to be as cool / swag / drip as possible. If someone has a buck lench they appear to be putting some effort into looking as cool as possible.
"Check out this dudes 'lench."
"DAMN I'm loving that guys buck 'lench."
"Yo your buck 'lench is craazy brah"
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.