This is completely understandable. I actually took several minutes to remember the correct word myself, at which point I went back and edited it into my post. Given the timestamp of your post, it seems to have appeared in the interim.
Returning to the original purpose of this post, another interesting word, which was actually introduced to me by my psychiatrist, is schizotypy.
pig in a poke = taking something sight unseen. Back in older days people would buy what they thought was a piglet in a burlap sack but it turned out to be some other animal or a rock instead.
a piece = another word for distance, very generalized.