Definition from Wiktionary, the free dictionary
comast (plural comasts)
- A reveler, usually drunken or riotous.
- 1996: Festivals of Dionysus were often characterized by ritual license and revelry, including reversal of social roles, cross-dressing by boys and men . . ., drunken comasts in the streets, as well as widespread boisterousness and obscenity. — The Oxford Classical Dictionary, 3rd edition, p. 481.
- (a reveler): reveler