1777 H. L. Piozzi Diary 28 May in (1951) I. 48 I will give one Instance of his Skill in our low Street Language.
1818 Sept. 111 There was an old woman who kept a night-school..for the sole purpose of teaching them [sc. children] the street language.
2006 1 Nov. 15/3 A ‘shotty’—street language for a shot gun.