(US black/teen) armed gang warfare.
|Deadmeat 203: The buff security guards wore puffer jackets with the logo Armshouse Inc.|
|‘Learn’ [lyrics] Come to the manor get shot, come to the manor get killed. / We call it armshouse, armshouse, go and get your crew.|
|www.reddit.com/r/hiphopheads Grime Terminology Guide [Internet] Arms house - Aggression/beef (E.g. I'll bring arms house to your mum's house - I'll bring the beef to your mum's house).|