A slang for the word "nerd" often used by people who have don't have lifes themself, so they call others this nasty name to make themself feel better.
Leedsu: Wow I haven't been on RuneScape in 4 hours, help me!
Anyone with a life: rofl ur such a leedsu l0l
Anyone with a life: rofl ur such a leedsu l0l
by Marxan- June 13, 2009