a masker and a reveller A "mask" is a costume party, especially one in which people take part in skits. A "revel" is a boisterous party.
Antony had a reputation as a party animal. Plutarch wrote that the Romans "did abhor [Antony's] banckets and dronken feasts he made at unseasonable times," and that "in his house they did nothing but feast, daunce, and maske: and him selfe passed away the time in hearing of foolish playes."1
1Plutarch. Plutarch's Lives of the Noble Grecians and Romans Englished by Sir Thomas North. Trans. Sir Thomas North. Vol. 6 (1579; London: David Nutt, 1896) 10.