1) to physically restrain the person being pinnered (henceforth referred to as the 'pinnee')
2) to ask the pinnee to retell everything that has just happened in a film being watched then asking what was missed during the explanation (repeat as necessary)
3) initiating a 'who kissed whom' argument
N.B: Pinnering should only be undertaken in a controlled and supervised environment.
"Yeah, dave had me pinnered all night."