Brat (brăt), n. [OE. bratt coarse garnment, AS. bratt cloak, fr. the Celtic; cf. W. brat clout, rag, Gael. brat cloak, apron, rag, Ir. brat cloak; properly then, a child's bib or clout; hence, a child.] 1. A coarse garment or cloak; also, coarse clothing, in general. Chaucer.
2. A coarse kind of apron for keeping the clothes clean; a bib. Wright.
3. A child; an offspring; — formerly used in a good sense, but now usually in a contemptuous sense. “This brat is none of mine.” Shak. “A beggar's brat.” Swift.
O Israel! O household of the Lord!
O Abraham's brats! O brood of blessed seed!
Gascoigne.
4. The young of an animal. L'Estrange.