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A combination of two words, Indeed and Splendid. It not only expresses an acceptance of another's idea and/or situation, but it makes it clear that the acceptance is one of positivity and delight for the expected outcome of the previously mentioned idea and/or situation.

*spleed rhymes with deed, not dead
Person 1: "I'm thinking we need to find a way to get that stinky old dude to stop passing out in our driveway every night"
Person 2: "Inspleed"
by jaiguru May 24, 2011