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!'
The overly disgusting vaginal area of a woman. Usually trademarked by a deep tan or red from over stimulation (i.e too much fucking). The labia are usually elongated and droopy.