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"- Sitting In A Tree"... something you add to an abbreviation of a cute couple's initials which implies the old first love rhyme "____ and ____ sitting in a tree, K-I-S-S-I-N-G, first comes love, then comes marriage, then comes baby in a baby carriage" (awesome preggers)

Usually reserved for couples that are capable of fairytale like endings or happily ever afters

Commonly used incorrectly to describe sexual relations, the eating of soup, or any other act starting with "s" that could possibly occur in a tree
Oh man, Scott and Sam have only been together for a little while but I can tell they are such a SASSIAT, I wish my girlfriend and I were a -SIAT
by sir and little miss October 03, 2010
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