the literal definition of this phrase is referring to the bottom of a bag of chips. the slang definition of this phrase was brought about by an instance of a person purposely opening a bag of chips from the bottom and then claiming that it is normal/common practice when it is obviously not common practice. ever since that pivotal moment in history, anything that is uncommonly weird and/or eccentric can be referred to as “bottom of the bag”. this phrase is synonymous with “that’s sus” (as in “that action is suspect”)
Tom: did you see Spike get some hand-sanitizer and use it style his hair?
Jerry: Yeah, that was kind of Bottom of the Bag for him to do that
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.