Top Definition
The mind melting extrodinary euphoria felt when listining to your favorite Beatles Song. A similar effect to going down the big hill on a roller coaster.
Dude 1: Dude I was listening to A Day in the life last Night
Dude 2: How was it?
Dude 1: Beatlificentatious
by Spilt Milk August 28, 2010

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