Top definition
A phrase commonly used among teens of California to mean "I'm ready for anything" or "that sounds like a hell of a lot of fun"
K: Let's hit the beach today! I heard the waves were intense.

T: So down!


P: I want to vandalize that sign.

O: So down!
by CrossCountryFool15 August 11, 2010
Happy St. Patties Day!
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