Ir. (and Sc.). [var. of prec.] = SPILLER sb.3 1. Also Comb.
1832. W. H. Maxwell, Wild Sp. West, I. 262. If you shoot in foul ground, you will probably lose the spillet.
1858. Simmonds, Dict. Trade, Spillet-fishing, a name on the west coast of Ireland for a system of fishing [etc.].
1875. Zoologist, 2nd Ser. X. 4502. Having shot their spillets (or long lines) in the morning.
Hence Spilleteer, one who spillers.
1832. W. H. Maxwell, Wild Sp. West, I. 263. An indistinct glance of a dark object brings the assistant spilleteer, gaff in hand, to the quarter.