mackereler|ˈmækərələ(r)| [f. mackerel1 + -er1.] a. One who goes mackerel-fishing. b. A boat used in mackerel-fishing. 1883Chamb.Jrnl. 272 Here is a model of that vast net used by the mackereler.1886Century Mag. XXXII. 824 The mackerelers do not keep together so much as formerly.