Definitions by Mr MKO

mkflegend 

Used to describe an individual who writes huge, rambling posts on an Internet message board - posts that never actually address the topic at hand, answer questions directly or contain anything useful or intelligent.

Comes from the Mortal Kombat fanboy mkflegend (also known as MKF30 or just MKF).

Dude, I'm not going to read that mkflegend post you just wrote.

or

Did you have to do an MKF post? All I asked was a simple question.

mkflegend by Mr MKO July 23, 2008