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The unclear language one speaks when yawning
Adam: Gosh am so tired!
Becca: I know, you've been speaking yawnese all night.
by proffessor010 October 13, 2010
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the incoherent language spoken when one tries to talk and yawn at the same time.
Emily tried to give me directions this morning, but she was so tired, I couldn't understand her Yawnese.
by MichiganJ March 26, 2009
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