Someone you know who is gay, or a way to identify oneself as gay.
Hey, I have a few Rainbow Contacts.
I am a Rainbow Contact.
When you cross your fingers to eliminate having the fart touch
Somebody on your contact list (either instant messenger, email, or phone) who you no longer communicate with but have no real reason to remove them. Because of this they end up staying on your contact list for far too long.
Damn.. I've got 500 people on MSN, most of those are limbo contacts!