Lyric discussion by Gaz_182 

Cover art for Teenagers lyrics by My Chemical Romance

Ummm... I think it's cog in the Murder Machine, not cock.... "Cock in the murder machine" would either not make sense or be very, very rude.

Or just be hilarious ROFLMAO!

@Gaz_182 "cock: verb 2. raise the cock of (a gun) in order to make it ready for firing." The murder machine is a gun, and he means to cock the gun, to get it ready for firing

@Gaz_182 ouch