Lulz

Lulz

Lulz is a perversion of lol, in that lol is caused by anything,
while lulz is caused by more evil types of humor. 

(i.e. trolling, an heroes, tragedies, and so forth). Lulz are exceedingly common on 4chan, if not life in general due to how much FAIL humanity can accumulate in a single hour.