Green’s Dictionary of Slang

1. in pl., a collection of money, esp. money tossed into a boxing ring after an amateur or boys’ fight.

1859, 1860		Hotten Dict. of Modern Sl. etc.
1861		(con. 1840s–50s) H. Mayhew London Labour and London Poor III 109/1: I had four shillings a-day and nobbings – a collection.
1870		Hotten Sl. Dict.
1893		P.H. Emerson Signor Lippo 35: The troupe went to Brighton for three months, when our average nobbings were forty-five shillings per week.

2. sexual intercourse.

2000

Bestdvd.co.uk 28 Dec. 🌐 Rev. of Ali G, Aiii DVD: My particular favourite is when Ali visits the Cannes Porn festival in search of a ‘nobbing’.