Dean, > invite $$1 $gettok(%x,%y,32)can be shortened to

invite $$1 $v1

Alternatively, you can tokenize tokens and do an internal looping on them:

menu nicklist {
  .[invite $$1]:{ 
    var %x = $$input(which rooms you want to invite $$1? $crlf put rooms separated by spaces $crlf like #room1 #room2 etc,eo,INVITE), %y = $$1
    tokenize 32 $!
    invite %y $*
  } 
}

P.S. There is no reason to use "wtf" to belittle someone's work.