bread and circuses

a little bit of bread and no cheese

Used to represent the song of the yellowhammer (Emberiza citrinella).

best thing since sliced bread

Alternative form of greatest thing since sliced bread.

bread and butter

That which is central or fundamental, as to one's business, survival, or income; a staple or cornerstone.

bread of life

Anything which is regarded as a source or inspiration of spiritual nourishment.

brown bread

Dead.

burn bread

To cause something unfortunate to happen to (someone) by mentioning it; to jinx something for (someone).

butter one's bread on both sides

To profit from two things at the same time, especially when those things seem contradictory or incompatible.

cast one's bread upon the waters

To perform a kind deed or favor without the motivation of any immediate reward or benefit to oneself, though with the possibility of eventual future return.