Scar·a·mouch also Scar·a·mouche (skār'ə-mōōsh', -mōōch', -mouch') n. A stock character in commedia dell'arte and pantomime, depicted as a boastful coward or buffoon.
[French Scaramouche, from Italian Scaramuccia, from scaramuccia, skirmish; see sker-1 in Indo-European roots.]