
Not sure if it's proper Ingerlish or not but in this case I guess she means that.
( , Sat 14 Jul 2012, 10:11, Reply)

then got a cap popped in her ass (correct phrasing?)
( , Sat 14 Jul 2012, 10:23, Reply)

by people as shorthand for the annoying phrase "you don't even know me", which is usually used by people who have spent all attempts at self-expression in showing themselves to be an utter dick. ie When someone is showing ignorance towards what it is like being the idiot.
Or they might have just got it mixed up with "arrogant".
edit: Dictionary says "Can be confused: ignorant, stupid". It's probably just being taken to mean "stupid".
( , Sat 14 Jul 2012, 10:35, Reply)