Green’s Dictionary of Slang

a spell of work, a time or occasion.

1868		Sporting Gaz. (London) 5 Dec. 3/1: [I]t is palpable, admitted even as a clever contrivance, that the winner, in slang phrase, had never been ‘intended’ this or that ‘journey’.
1884		Longman’s Mag. v 179: He’s got safe enough off, this journey! [F&H].
1936		J. Curtis Gilt Kid 116: Not likely. Not this journey, thank you.