Something that completely fucks your mind until you think about it and it suddenly makes sense.
Bob: That flaming Russian Porcumime made no sense.
Rob: Tell me about it.
Bob: But after some thought, I think I get it.
Rob: Total one mind stand.
When you pick your nose and stick your booger into the other persons nostrils.
Mike "Hey man, quit picking your nose!"
Ike "its ok I'm not gonna waste it, we're gonna end up mind melding after you go to sleep, like on star trek."