A lulzfag is a person who over uses the word "Lulz" like using
at end of insults. To make this failure worst then being a lulzfag is by mistyping most of the words used in the insult/speech. It was also used in the "Youtube war" as a comeback for the furryhates thus "Furfag" "Lulzfag" But that was just a stupid little war that was just a waste of time..
Jimmy: lol u fal fag luLz.(Lol you fail fag lulZ)
Timmy: Oh god another lulzfag GTFO.