Brownies meaning : A small square piece of rich cake, usually made with chocolate. A mythical creature, a helpful elf who would secretly do people's housework for them. A household spirit or revered ancestor. Any of various lycaenid butterflies of the Eurasian genus Miletus. A brown trout (Salmo trutta). A tall, long-necked beer bottle, made from brown coloured glass. A person of Arab, Indian or Hispanic descent. Also rarely used for a Native American or Pacific Islander. A girl in the first level of girl scouts.