Similar motion to the uppercut. The only difference is location.
Not to be mistaken with fisting, which is very similar. The difference being that the Uppercunt is fast and not a repeated motion as there is no need for further pleasure after such a maneouvre.
A technique that is apparently associated with Leeroy Jenkins.
Bill - Last night I got my Uppercunt on.
Phil - Oh cool.
Bill - Yeah, I know. Her head is still stuck in my ceiling as we speak.