acronym for Massively Multiplayer Online game. MMOs usually involve a free download and recurring monthly fee for gameplay. The most popular MMOs are MMORPGs. One such game is World of Warcraft
Synonyms for MMO
On this page, you will find 30 slang terms related to MMO. Some of the top words include: MMOG, MEO, Ultima Online, BGH, mob, and 25 more.