When a person of power such as Harvey Weinstein or Louis C.K. forces women to watch them masterbate.
Can also be used as a surprise form of masterbation to unsuspecting victims.
First used on twitter by comedian Owen Benjamin on 11/9/2017 in reference to Louis C.K.
Harvey Weinstein force whacked into a potted plant in front of Lauren Sivan.
Or
Louis C.K. force whacked in front of Dana Min Goodman and Julia Wolov in a Colorado hotel room.