slat v Cp EDD ~ v 3 1 'to throw violently ... dash down'; Fisheries of U S 153. To remove a fish from hook with a quick, dexterous jerk.
1861 Harper's xxii, 598 Fish after fish came floundering over the sides of the boats, were dexterously 'slatted' off upon the 'crotch irons,' and the hooks, quickly baited, were tossed into the water again. M 67-10 We find [the fishermen] 'slatting' the fish off the hooks and at intervals 'fark' them back into a pen.
