1 definition by SondraSquarepants

1. An almost nonexistent relationship, usually of a romantic nature, with one party exaggerating or imagining their closeness; a relationship almost exclusively existing in the hopeful person's mind.

2. A product of a lovelorn person's imagination, a relationship planned out in said person's thoughts, unbeknownst to their object of affection, and almost never acted upon; can be a celebrity as well.
Person A: So how is Kyle doing with Sarah?
Person B: Haha, he told you they were going out? Total imaginationship.

Despite Tyler having a girlfriend, Beth develops their imaginationship in her head, right up to their wedding.
by SondraSquarepants June 9, 2009
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