cock·a·lo·rum 
(kŏk′ə-lôrəm)
(kŏk′ə-lôrəm)n.
1. A little man with an unduly high opinion of himself.
2. Boastful talk; braggadocio.
[Perhaps alteration (influenced by Latin -ōrum, genitive pl. ending) of obsolete Flemish kockeloeren, to crow, of imitative origin.]