from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A little man with an unduly high opinion of himself.
- n. Boastful talk; braggadocio.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A menial, yet self-important man, empty boaster.
- n. The game leapfrog.
- n. A boastful speech.
from The Century Dictionary and Cyclopedia
- n. A person of consequence; a self-important person.
Perhaps alteration (influenced by Latin -ōrum, genitive pl. ending) of obsolete Flemish kockeloeren, to crow, of imitative origin.(American Heritage® Dictionary of the English Language, Fourth Edition)
Probably from a Dutch dialectal kockeloeren an onomatopeia; hence modern Dutch verb koekeloeren ("to crow"). (Wiktionary)