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A fartthat is usually silent. Also can be called an SBD (silent-but-deadly) Not good for people in enclosed areas.
Eww, you just floated an air biscuit!
by Inquisitor911 February 14, 2005
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when someone breaks wind and catches it then releases it into someones face
by Anonymous January 31, 2003
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When somebody is standing by you and farts and walks away.
Okay, when you turn your test in don't leave me any air biscuits by my desk.

"oh gee thanks for leaving me that airbiscuit." huh? i didnt bring you any biscuits..??
by bagelbailey June 6, 2009
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An air biscuit is when you fart, catch it in your hand, then release into someone's face.
Lee loves to spraff for air biscuits.
by sangajin May 21, 2007
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A fart that makes neither a sound nor a smell. These farts are very disappointing.
Nin thought she was going to make a deliciously giant fart, but it was nothing more than an air biscuit.
by Christine, Joe, Tamara October 7, 2003
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