"WOT" Stands for Wall of Text, when used by someone on a message board who fails to paragraph his/her post.
Somewhat of a pun as "wot is also sort for "what" indicating you don't get what he/she says.
Person A ) " I rlly hate this game because it has so many things wrong with it like when you shoot the black guy he doesn't die and when you shoot your girl friend she dies but she doesn't beg to live making it a pretty stupid game as well as the fact that when you drive your call really really fst it doesn't really work so the staff who made this game are just idiots who have been trained for 2 years but clearly they didn't learn anything jsut like i dont know how to spell or write or anything. It bcms evn mor anyin wen 1 strts 2 rite lyk dis cos nw tis nt pssible to read. "
Person B) " WOT "