Green’s Dictionary of Slang

(Irish) a street urchin.

1955		J.P. Donleavy Ginger Man (1958) 72: A girl pipers’ band was rounding the front of Trinity College, all green and tassels and drumming [...] Followed by gurriers.
1961		(con. 1890–1910) ‘Flann O’Brien’ Hard Life (1962) 91: That gurriers wouldn’t think of advising a man to take off his clothes before he took a bath.
1987		(con. 1920s) L. Redmond Emerald Square 121: I’ll have no Dolphins Barn gurrier in this family! [Ibid.] 323: ‘A crrrowd a’ skunnerrrs ...’ – the Glasgow equivalent of a Dublin gurrier, ‘a louser,’ a corner boy.
1995		P. Boland Tales from a City Farmyard 112: The young undesirables of today are called gurriers, skinheads, layabouts, and other names.
2000		F. Mac Anna Cartoon City 166: Psychodad had blamed the local gurriers for the incident with the Jaguar.
2015		L. McInerney Glorious Heresies 200: Gurriers tied to you were still gurriers.
2019		A. Killilea Boyo-wulf at https://boyowulf.home.blog 14 Apr. 🌐 And from him came about all sorts of gurriers; gombeens and loolas and absolute gowls.