n. & v.
n. 1 a a band of persons acting or going about together, esp. for criminal purposes. b colloq. such a band pursuing a purpose causing disapproval. 2 a set of workers, slaves, or prisoners. 3 a set of tools arranged to work simultaneously.
v.tr. arrange (tools etc.) to work in coordination. gang-bang sl. an occasion on which several men successively have sexual intercourse with one woman. gang up colloq. 1 (often foll. by with) act in concert. 2 (foll. by on) combine against.
[ orig. = going, journey, f. ON gangr, ganga GOING, corresp. to OE gang ]