Pinch gripping involves squeezing the extended fingers towards the thumb without flexing individual digits, such as you'd experience holding a textbook.
Most strength athletes use plate pinches (holding two 25 or 45 pound plates together), but there are alternatives. For example, using two dumbbells allows you to have access to a greater range of weights. That makes it much easier to progress in smaller increments.
What happens when a bodybuilder and a nutrition store owner get together and make a baby? What happens when this baby is raised on health foods? What happens when she starts training with weights at age 14?