Green’s Dictionary of Slang

elrig n.

girl.

1859		Hotten Dict. of Modern Sl. etc.
1864, 1867, 1870		Hotten Sl. Dict.
1882		Sydney Sl. Dict. (2 edn) 11: Elrig - A girl.
1887		J.W. Horsley Jottings from Jail 4: Hi, yob! kool that enif elrig with the nael ekom.
1923		Northern Whig 12 Sept. 8/6: In some parts of the East End of London the coster class [still] say ‘occabot,’ [and] ‘reeb.’ A boy is still a ‘yob,’ a woman a ‘namow,’ and a girl an ‘elrig’.
1980		(con. 1930s) Barltrop & Wolveridge Muvver Tongue 35: ‘Elrig’ for a girl used to be heard.
2001		J. Burkardt ‘Back Sl.’ Wordplay 🌐 elrig: girl.