Wanna make out?
Dude: Hey gurl, wmo?
Girl: sure, what flava you want?
Girl: Kiss Kiss
Weapons of Mass ONIJ. (ONIJ = ownage). The top level on the "Scale of ONIJ". A WMO is ONJ that may cause physical or mental harm to the victim.
Terrence is straight trippin. I'm about to hit him with a WMO.