alexander, v. — Green’s Dictionary of Slang

alexander v.

[coined by the Earl of Orrery for proper name Sir Jerome Alexander, a hanging judge, active in Ireland 1660–74]

(Anglo-Irish) to hang someone.

1722		A. Ramsey Tale of Three Bonnets (1785) 6: She was a winsome wench and waly [...] Just sic as her wha far aff wander’d To get hersel weel Alexander’d.
1880		Transct. Royal Hist. Soc. VIII 7: Sir Jerome was harsh, merciless, and grasping ; his sentences in administering the criminal law were so terrible that the expression to be Alexandered came to signify to be hanged.
1901		N&Q 182/1: To be alexandered. — To be hanged. This expression arose [...] from the harsh and merciless manner [of] Sir Jerome Alexander, an Irish judge,.
1909		Farmer & Henley Sl. and Its Analogues (rev. edn) 29/2: Alexander [...] (old) – 1. To hang.