=/= means Doesn't egal.
School, doesn't, egal, fun.
Cause Joe (heartless_Name) said (actually, he wrote) "Have fun at school" to Elisa (VictimeOfTheNight) because she said (sctually, she wrote) that she was going to school.
BloodyScalpel (That I don't remember the real name, sorry) said (actually, he wrote) the confused smiley, to show that he don't understand how somebody can have fun at school.
That was the joke.
Leadro... but AHAHAHABloddyScalpel's name must something like Pedro.
That's funny that your nickname is Tomma, but you're a girl...