defragmenter 

Slightly derogatory term for psychiatrists. Can be shortened down to 'frag'. Used by intellectual bogan youths.

"You got issue dude! You need to go see a defragmenter!"

defragmenter by Alex Quantashassle April 21, 2005

neuro-defragmentation 

A process that involves the systematic disintegration of the brain, often a consequence of an extremely befuddling statement or assertion, such as an ancient chinese proverb or a sentence in Latin.

Person 1: did I confuse you?
Person 2: yeah i was on the brink of neuro-defragmentation

Person 1: So you say he was trying to listen to classical music whilst watching scuzz and doing a crossword in spanish at the same time?
Person 2: I'm afraid that's the truth, yes.
Person 1: Poor man, looks like a serious case of neuro-defragmentation

neuro-defragmentation by SavouryJesus July 22, 2010

defragmentation 

1.The process of defragmenting your hard drive

2.The gamertag of a bad kid who cheats in Halo 2 on xbox live

Nerd-"the defragmentation process is almost complete"
other guy-"what the fuck are you takling about you crazy crack head"

defragmentation by CaptainPortugal July 23, 2006