COCKALORUM Meaning of COCKALORUM in English [cock.a.lo.rum] n, pl -rums [prob. modif. of obs. Flem kockeloeren to crow, of imit. origin] (ca. 1715) 1: a boastful and self-important person 2: leapfrog 3: boastful talk Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012