Top Definition
Science Bless You (SBY): The proper response one gives to an individual that sneezes who does not believe in paganistic rituals or fairy tales.
Science Bless You (SBY)

Mike sneezed into his hand.

Adam, " SBY my friend, SBY"

Mike; " Thanks man, it was a nasty one."
by Imade Bigbrown August 11, 2010

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