Green’s Dictionary of Slang

small, nondescript items, ‘bits and bobs’.

1825		Examiner 13 Feb. 15/1: [advt] Airy Nothings; or Scraps and Noughts and Odd-cum Shorts &c.
1829		‘The Lobsters’ Clause’ in C. Hindley James Catnach (1878) 208: Their oddcum shorts they muds be selling.
1839		E. Leslie Gift 97: I have twenty-three glass cases and kivers — a sight of shells, worth looking at — and no end of odd- cum-shorts.
1850		Bell’s Life in Sydney 2 Mar. 3/2: She did a rattling trade in everything [...] in fact, [...] hers was an odd-como-short depot.