Noun
(slang, mildly vulgar, augmentative, rare) Testicles; bollocks.
(slang, mildly vulgar, figuratively, uncountable, rare) Courage, fortitude, or machismo.
Synonyms: (vulgar) balls, (vulgar) bollocks, (vulgar) cojones, guts, nerve, chutzpah; see also Thesaurus:courage