Green’s Dictionary of Slang

a carpet-bag.

1847		G.W.M. Reynolds Mysteries of London III 85/1: A Stranger—looked like a peterman. Busy-sack, redge-yack, six wedge-feeders, and togs in a busy-sack .
1864, 1867, 1870		Hotten Sl. Dict.
1873		Sl. Dict.
1895		Crowe Aus. Sl. Dict. 13: Busy Sack, a carpet-bag.
1909		J. Ware Passing Eng. of the Victorian Era.