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The most wonderful ache that there is. Caused by just being with, thinking about, talking to, or simply looking at someone who is very special to oneself. The ache that never goes away completely because it has a perpetual effect on everthing else that you feel. Anyone who experiences a "smileache", never forgets it, and considers it to be a treasure to their being because the smilemaker is someone that you cherish every moment with, and who can brighten even the darkest moments of your day.

I have smileaches because everytime I think about you I smile. I guess that's why I'm always smiling.
by Buddy666 April 13, 2007
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