brown

be as brown as a berry (British & Australian)

if someone is as brown as a berry their skin has become much darker because of the effects of the sun. She's as brown as a berry after a month in Greece.

brown-bag

brown-bagging - taking your own food, usually in a brown paper bag, to eat in the middle of the day when you are not at home. We had our meeting over a brown-bag lunch. (always before noun)

brown-bagging (American, informal)

taking your own food, usually in a brown paper bag, to eat in the middle of the day when you are not at home. We've stopped brown-bagging - it's too cold now to eat in the park.

brown-nose (informal)

to try too hard to please someone, especially someone in a position of authority, in a way that other people find unpleasant. The rest of the class were sick of watching him brown-nose.