I call this one the “backhand blaster” because, if I keep it up long enough, you’ll blow your load for sure, whether you want to or not.
First, I hold your dick tightly around the base of the shaft with my right hand, and then I use my left in a backhanded grasp, with my palm facing away from me and my fingers curling around the other side.
This grip really increases the friction on the underside of your cock, doesn’t it?