Code:
on @*:TEXT:*:#:{
  inc -u2 %flood. [ $+ [ $nick ] ]
  if ($1-3 == %fld. [ $+ [ $nick ] ]) { inc -u60 %rpt. [ $+ [ $nick ] ] }
  if (%flood. [ $+ [ $nick ] ] == 3) || (%rpt. [ $+ [ $nick ] ] == 3) {
    ban -ku600 $chan $nick 3 Tell ya what... Stop floodin. Take a timeout for 10 minutes!
    halt
  }
  set -u60 %fld. [ $+ [ $nick ] ] $1-3
}



If they type the same thing within 60 seconds they will get kicked.