A synonym for "with" used by the nearly-illiterate l33tspeakers. I wouldn't mind if they did it once or even twice a comment/post, however it seems there's a coalition that decides what misspelled words to use (???). The main
definition of "wit", which you probably know already, means the ability to make jokes and exercise intellect quickly without much thought. Someone who is able to make apropos puns would display wit. Fitting, since
people who are poor spellers
don't generally have much wit.