noun, masculine/lə bœ.ʁ‿e l‿aʁ.ʒɑ̃ dy bœʁ/
two mutually exclusive things, such that one can only choose one over another
“Tu ne peux pas avoir le beurre et l’argent du beurre.” — You can't have your cake and eat it too.
Literally, “the butter and the money from [selling] the butter”.