What is the meaning of Cobb?

A sea-cob or gull.

A pier made from cobblestones.

A hand-basket, especially made from wicker.

A building material consisting of clay, sand, straw, water, and earth, similar to adobe. Also called cob, rammed earth or pisé.

A knock or blow.

Alternative form of cob (person of mixed (black and white) race)

Source: wiktionary.org