SWIG, verb transitive or i. To drink by large draughts; to suck greedily. SWIG, noun A large draught. [Vulgar.] 1. In seamen's language, a pulley with ropes which are not parallel. SWIG, verb transitive To castrate, as a ram, by binding the testicles tight with a string. [Local.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI