This is a snippet that will allow you to have a three way chat with people privately,instead of in a channel. Just right click in the nicklist/channel and click threewaychat. It will pop up asking you who you want to threewaychat with it's pretty self explanatory anyone finds bugs or needs help with it just let me know. input scripts can mess with this if you try to use it turn them off. also you have to have your ctcp's on seeing as it runs off of ctcp's

Menu nicklist,channel {
  .threewaychat: { .set %threeway1 $$?="Enter the first nick of who you want to threewaychat with"
    .set %threeway2 $$?="Enter the second nick of who you want to threewaychat with"
    .ctcp %threeway1 wanttothreewaychat with %threeway2
    .ctcp %threeway2 wanttothreewaychat with %threeway1
    threewaychat
  }
}
ctcp *:wanttothreewaychat:*: {  
  .set %threeway1 $nick
  .set %threeway2 $3
  dialog -v,-md yesorno.system yesorno.system
}
alias threewaychat {
  window -eCkbl20 @threewaychat  10 10 650 500 $mircexe
  aline -pd @threewaychat 7,1 $time(ddd h:nn:ss::tt) 3,1 Thank you for using threewaychat coded by Ryan aka Blackvenomm666
  aline -pd @threewaychat 7,1 $time(ddd h:nn:ss::tt) 3,1 you have now started a threeway chat with %threeway1 and %threeway2
  aline -l @threewaychat %threeway1
  aline -l @threewaychat %threeway2
}
menu @threewaychat {
  .commands
  ..clear:clear
  ..end threeway chat:{
    .msg %threeway1 i'm leaving the threewaychat
    .msg %threeway2 i'm leaving the threewaychat
    .unset %threeway1 %threeway2
    close -@
  }
}
ctcp *:3way:*:{ if ($nick == %threeway1) || ($nick == %threeway2) {
aline -pd @threewaychat $nick $2- } }
on *:INPUT:@threewaychat: {
  aline -pd @threewaychat $me $1-
  .ctcp %threeway1 3way $1-
  .ctcp %threeway2 3way $1-
}
on *:close:@threewaychat: {
  echo -s closed
  .msg %threeway1 leftchat
  .msg %threeway2 leftchat
  .unset %threeway1
  .unset %threeway2
}

Dialog yesorno.System {
  Title "Yes or no"
  Size -1 -1 170 46
  Option dbu
  text " " 1, 02 02 167 26, hsbar vsbar 
  button "Yes ", 2, 02 24 45 20, flat
  button "No ", 3, 50 24 45 20, flat 
}
on *:dialog:yesorno.System:init:*:{
  did -az yesorno.system 1 Do you want to threeway chat with %threeway1 and %threeway2

}
on *:dialog:yesorno.System:sclick:2:{
  threewaychat
  dialog -x yesorno.system yesorno.system
}
on *:dialog:yesorno.System:sclick:3:{
  .msg %threeway1 no thank you
  .unset %threeway1 %threeway2
  dialog -x yesorno.system yesorno.system
}