Top Definition
Given by Terri Edda Miller as her definition of Castle Season 6 or more appropriately called SEASON SEX. Basically Castle + Orgasm = Castlegasm. It's an immediate after effect of Castle & Beckett's "Crime Solving Foreply" & "Eyesex".
Did you watch the Castle episode last night?! It was Castlegasmic!!
by Kat Fillion September 30, 2013

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