you are better off doing it this way

on *:TEXT:!8ball*: {
  if (!$($+(%,8ballflood),2)) {
    set -u3 $+(%,8ballflood) on
    var %8ball = It seems so.|I doubt it.|I dont't care.|Who the hell are you?|Ask me again in 1000 years.|Absolutely not!|I'm 100% sure that its true.
    msg $chan 12The magical Eight-Ball says,"5 $gettok(%8ball,$r(1,7),124) 12"
  }
}

or this way (this one was made by napa182 and is triggered in a form of a question. like "8ball will i get home tonight?")

on *:text:*:#:{
  if ($regex($1-,/^(8ball\s(.*)\?)$/S) && !$($+(%,ball8flood),2)) { 
    set -u3 $+(%,ball8flood) $nick 
    var %^ = Ask again later.|Not a chance.|As I see it, yes.|Don't count on it.|My sources say no.|Yes.
    describe # shakes up the 8ball...
    .timer8ball 1 2 msg # The magic 8ball says: $gettok(%^,$r(1,6),124)
  }
}