Top definition
A mutually beneficial relationship between two people, one uncomfortably warm and the other too cold, in which physical contact restores the participants to a comfortable temperature.

Another Successful Heat-Exchange Relationship--a short play
Girl: I'm too hot.
Guy: I'm freezing. Come here.
Both (10 minutes later): That's better. Good night.
by areikiera9 October 30, 2007
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