Green’s Dictionary of Slang

smuggings! excl.

[the excl. used at the end of a game of marbles or spinning tops when the child who shouted thus first was allowed to keep the toy in question]

(UK teen) mine!

[UK]Halliwell Dict. of Archaic and Provincial Words II 763/2: Tops are in, spin ’em agin; / Tops are out, smuggings shot.
[UK]Hotten Dict. of Modern Sl. etc. 96: smuggings snatchings, or purloinings, ? shouted out by boys, when snatching the tops, or small play property, of other lads, and then running off at full speed.
[UK]Hotten Sl. Dict.
[UK]Sl. Dict.