When someone or something is being arms at a next level, or on a habitual basis.
See "arms" or "armz".
playa1: "yo, b that dude has been tryin to keep a playa down all day long"
playa2: "he must have mad armz disease"
HP: "hey guys you gotta leave, we got the room booked"
Smiff: "yo wtf... dude got mad armz disease"