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1.
Someone who is shit at lying
John's version of event's was totally unbelievable, he is such a poonocchio
by affleck April 30, 2009
 
2.
A person who has told a lie and the resulting punishment inflicted by the peers of the liar involves someones butthole being placed upon the nose leaving a scent and/or evidence labeling them as being dishonest. Best accomplished when the perp is asleep.
That story he told at the party was such bs, after he passed out we poonocchioed him.
by govspends2much$ September 21, 2011