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1.
When, on a date, one person thinks there are romantic possiblities, while the other believes it's strictly a friendship outing.

Halluscadating: having the impression that a scheduled meeting with a morsel is a date when in fact, you are being used for timefill or a useful skill
Tom went out with Kate the other night. Kate is too pretty for Tom. Friends, he was kidding himself and should have known it was a mere halluscidate.

Tom knew he was halluscidating when she said he reminded her of her brother.
by The_Rug December 02, 2010