Similar to COTW, this stands for "Monster Of The Week" as used by fans of TV show Supernatural. In earlier seasons all episodes were MOTW, but now with Apocalypse storylane, it's used to indicate filler episodes.
Used primarily by drug traffickers and trappers, to indicated that currency will be delivered or will arrive in the near future from the success of a transaction of illegal or illicit products.
Trapper 1: Did you make that deal?
Trapper 2: Yeah, MOTWS.
Trapper 1: What?
Trapper 2: MOTWS! Money on the way soon bruh!