Coming from the combination of Dicked - meaning something that was unfair or screwed over i.e. that was dicked. And out - meaning an extreme amount of something i.e. that girl was all decked out from head to toe in purple clothing.
b. To have a known history among others as to being one to lose control of one's self when in crucial situations that pertain to the good of the whole.
Originated, more than likely, from Fro in the late second half of 2002 AD. Probable cause for the word's inception must be credited to Big Fat doing something that constituted Fro to hurl an insult concerning Fat’s ineptitude for control.
Dude, don’t invite that bitch over! You know she’ll dick-out or something.