Any of various small, colonially-nesting African weaver birds, especially (usually) the sociable weaver, Philetairus socius, and (less commonly) either of two birds of the genus Pseudonigrita, Ps. arnaudi and Ps. cabainisi.
Origin
Mid 19th century.
Definition of social weaver in US English:
social weaver
(also social weaver bird)
noun
Any of various small, colonially-nesting African weaver birds, especially (usually) the sociable weaver, Philetairus socius, and (less commonly) either of two birds of the genus Pseudonigrita, Ps. arnaudi and Ps. cabainisi.
Definition of social weaver in English:
social weaver