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1.
When you are very close with someone, a family member, a close friend or a soulmate, you can both feel each others emotions even if you may not be in the same room, same house, same suburb or same state. because you share a deep connection and pure love for one another every emotion, feeling and sentiment they are experiencing runs deep in your body and heart. Their emotion because yours and yours becomes theirs.

Termed after 'siamese twins'.
We are so close to each other that I can feel his every emotion even though we are apart... we are experiencing siamesemotion.
by BeckyWren July 03, 2010