Green’s Dictionary of Slang

(Aus.) a crayfish.

1910		L. Esson Woman Tamer in Ballades of Old Bohemia (1980) 70: What’s up? Blime, you’ve cleaned the knives. [...] Where did you pinch that lovely cray? Ain’t he bosker.
1916		C.J. Dennis ‘The Push’ in Moods of Ginger Mick 42: Yeh kin tell Rose, if yeh see ’er, I serloots ’er o’er the foam, / An’ we’ll ’ave a cray fer supper when I comes a’marchin’ ’ome.
1960		J. Iggulden Storms of Summer 164: I got a good spot for crays.
1968		D. O’Grady A Bottle of Sandwiches 93: Haven’t had a feed o’ crays for weeks.
1981		G. Johnston Fish Factory 10: How are the crays, Dan?