The Free Dictionary website states that the meaning of bread and butter is:
- noun A vital component of something. Bread and butter, as foodstuffs, are considered basic forms of sustenance. A flourishing stock market is the bread and butter of a successful country.
- noun A job or task that provides one with a steady income. I'm an artist on the weekends, but being a tutor is my bread and butter.
Now, my question: as a freelancer, can I call my expensive laptop my bread and butter?