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A smstrain is a quatrain, or a stanza within a phone, that consists of four lines. It is the most common of all manifestations of cellphomania (phone therapy for recovering erstwhile incurable nymphomaniacs and insomniacs though maniacs ARE not excluded). The rhyming patterns include iiuu, yuyu, icci, sexe.

You appear well trained in constraining your smstrain within the required cell train without any apprent strain be it shine or rain.
by Hercolena Oliver May 30, 2008
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