A phrase when in used in conversation means something efficient or beneficial.
or
a speedrunning term meaning when a trick is found to make the overall time for that run be reduced
Friend: I found out that you can click ctrl+shift+t to open a new tab!
Freind 2: Yeah, its such a timesave
or
Person: Did you hear that you can build up infinite speed in SM64?
Person 2: Yeah its a pretty old timesave.
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.