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Pronounced "pa-na-so" 'Pan' in spanish can mean bread and can mean vagina. In this situation, we're using the word vagina. So when you put 'Pan' and 'aso' together you get a vagina slap.
"I was asleep last night when my stupid girlfriend gave me a panaso and woke me up."
by OrangutanNipples October 18, 2011