Just alt+r and load it as a remote, if your're oper you can kill flood if not, change "kill" to kick or ban, or add more stuff, youre free to change it, enjoy.

on @*:TEXT:*:#: { 
  if (%flood2. [ $+ [ $wildsite ] ] == $null) {
    set -u5 %flood2. [ $+ [ $wildsite ] ] 1
  }
  elseif (%flood2. [ $+ [ $wildsite ] ] >= 4) {
    kill $nick 1,9 Flooding, then your're leaving...
    unset %flood2. [ $+ [ $wildsite ] ]
  } 
  else { inc -u5 %flood2. [ $+ [ $wildsite ] ] } 
}