The definition of a cockalorum is a little man who incorrectly has a very high opinion of himself.
A low-level and unimportant employee who tries to throw around his power and who thinks he is extremely important and boasts about it is an example of someone who would be described as a cockalorum.
A little man with an unduly high opinion of himself.
Boastful talk; braggadocio.
A little man with an exaggerated idea of his own importance.
Boastful talk; crowing.
Origin of cockalorum
- Perhaps alteration (influenced by Latin -ōrum genitive pl. ending) of obsolete Flemish kockeloeren to crow of imitative origin
From American Heritage Dictionary of the English Language, 5th Edition