[stag] n, pl stags [ME stagge, fr. OE stagga; akin to ON andarsteggi drake] (12c) 1 or pl stag : an adult male red deer; also: the male of various other deer (esp. genus Cervus)
2. chiefly Scot: a young horse; esp: a young unbroken stallion
3: a male animal castrated after maturity--compare steer 1
4: a young adult male domestic fowl
5. a: a social gathering of men only b: one who attends a dance or party without a companion
[2]stag vb stagged ; stag.ging [stag (informer)] vt (ca. 1823) Brit: to spy on ~ vi: to attend a dance or party without a companion [3]stag adj (1843) 1 a: restricted to men "a ~ party" b: intended or suitable for a gathering of men only; esp: pornographic "~ movies"
2: unaccompanied by someone of the opposite sex "~ women" -- stag adv