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1 definition by bcoshletitsinh

Having a fist inserted into your anus for the first time, causing you to yelp 'Wagamama'. Originally from a japanese porn video that circulated the internet in the late noughties.
-'What was that noise?'
-'Dude, I think that girl totally just got her Wagamama Cherry popped!'
by bcoshletitsinh November 24, 2010