Lyric discussion by herestolife1000 

Cover art for Guns For Hands lyrics by Twenty One Pilots

i think the song could also have self mutilation references and an overall anti suicide theme

i think "fused at the wrist" is referring to how a lot of self mutilators will cut their wrists, and it exposes the flesh underneath. all of these people being "connected" through the bare flesh on their wrists. i know it sounds weird but it kinda makes sense to me lol

My Interpretation