MoWa 2 is short for the sixth game of the Call of Duty series, formally known as Modern Warfare 2.
Many of the elitist gamers found no reasoning behind using more than three syllables when referring to the sensational video game. Thus MoWa 2 was born.
For those of us who are that good (not going 1-28 in TDM), dont have the time to say Modern Warfare 2. We are too busy killing you.
"Dude you wanna kill some bitches in Halo?"
"Nah, fuck that im gonna wreck face in MoWa 2"